---
_id: '57107'
author:
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Martin Miroslavov
  full_name: Mihaylov, Martin Miroslavov
  id: '42449'
  last_name: Mihaylov
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
citation:
  ama: 'Kress C, Schwabe T, Mihaylov MM, Silberhorn C, Scheytt JC. Integrated Pulse
    Generator for Photon Pair Generation using Lithium Niobate on Insulator Technology.
    In: ; 2024.'
  apa: Kress, C., Schwabe, T., Mihaylov, M. M., Silberhorn, C., &#38; Scheytt, J.
    C. (2024). <i>Integrated Pulse Generator for Photon Pair Generation using Lithium
    Niobate on Insulator Technology</i>. Quantum Photonics Spotlight, Paderborn.
  bibtex: '@inproceedings{Kress_Schwabe_Mihaylov_Silberhorn_Scheytt_2024, title={Integrated
    Pulse Generator for Photon Pair Generation using Lithium Niobate on Insulator
    Technology}, author={Kress, Christian and Schwabe, Tobias and Mihaylov, Martin
    Miroslavov and Silberhorn, Christine and Scheytt, J. Christoph}, year={2024} }'
  chicago: Kress, Christian, Tobias Schwabe, Martin Miroslavov Mihaylov, Christine
    Silberhorn, and J. Christoph Scheytt. “Integrated Pulse Generator for Photon Pair
    Generation Using Lithium Niobate on Insulator Technology,” 2024.
  ieee: C. Kress, T. Schwabe, M. M. Mihaylov, C. Silberhorn, and J. C. Scheytt, “Integrated
    Pulse Generator for Photon Pair Generation using Lithium Niobate on Insulator
    Technology,” presented at the Quantum Photonics Spotlight, Paderborn, 2024.
  mla: Kress, Christian, et al. <i>Integrated Pulse Generator for Photon Pair Generation
    Using Lithium Niobate on Insulator Technology</i>. 2024.
  short: 'C. Kress, T. Schwabe, M.M. Mihaylov, C. Silberhorn, J.C. Scheytt, in: 2024.'
conference:
  end_date: 2024-10-10
  location: Paderborn
  name: Quantum Photonics Spotlight
  start_date: 2024-10-08
date_created: 2024-11-15T10:20:33Z
date_updated: 2024-11-15T10:21:02Z
department:
- _id: '58'
- _id: '623'
language:
- iso: eng
project:
- _id: '175'
  grant_number: '231447078'
  name: 'TRR 142 - C11: TRR 142 - Kompakte Photonenpaar-Quelle mit ultraschnellen
    Modulatoren auf Basis von CMOS und LNOI (C11*)'
status: public
title: Integrated Pulse Generator for Photon Pair Generation using Lithium Niobate
  on Insulator Technology
type: conference_abstract
user_id: '13256'
year: '2024'
...
---
_id: '57111'
author:
- first_name: Martin Miroslavov
  full_name: Mihaylov, Martin Miroslavov
  id: '42449'
  last_name: Mihaylov
- first_name: Christian
  full_name: Kress, Christian
  id: '13256'
  last_name: Kress
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
citation:
  ama: 'Mihaylov MM, Kress C, Scheytt JC. Simulation and Optimization of Low-Loss
    Photonic Coupling  Structures for TFLN Integrated Circuits for Quantum Applications.
    In: ; 2024.'
  apa: Mihaylov, M. M., Kress, C., &#38; Scheytt, J. C. (2024). <i>Simulation and
    Optimization of Low-Loss Photonic Coupling  Structures for TFLN Integrated Circuits
    for Quantum Applications</i>. Quantum Photonics Spotlight , Paderborn.
  bibtex: '@inproceedings{Mihaylov_Kress_Scheytt_2024, title={Simulation and Optimization
    of Low-Loss Photonic Coupling  Structures for TFLN Integrated Circuits for Quantum
    Applications}, author={Mihaylov, Martin Miroslavov and Kress, Christian and Scheytt,
    J. Christoph}, year={2024} }'
  chicago: Mihaylov, Martin Miroslavov, Christian Kress, and J. Christoph Scheytt.
    “Simulation and Optimization of Low-Loss Photonic Coupling  Structures for TFLN
    Integrated Circuits for Quantum Applications,” 2024.
  ieee: M. M. Mihaylov, C. Kress, and J. C. Scheytt, “Simulation and Optimization
    of Low-Loss Photonic Coupling  Structures for TFLN Integrated Circuits for Quantum
    Applications,” presented at the Quantum Photonics Spotlight , Paderborn, 2024.
  mla: Mihaylov, Martin Miroslavov, et al. <i>Simulation and Optimization of Low-Loss
    Photonic Coupling  Structures for TFLN Integrated Circuits for Quantum Applications</i>.
    2024.
  short: 'M.M. Mihaylov, C. Kress, J.C. Scheytt, in: 2024.'
conference:
  end_date: 2024,10,10
  location: Paderborn
  name: 'Quantum Photonics Spotlight '
  start_date: 2024,10,08
date_created: 2024-11-15T13:47:10Z
date_updated: 2024-11-15T14:01:51Z
department:
- _id: '58'
- _id: '623'
language:
- iso: eng
status: public
title: Simulation and Optimization of Low-Loss Photonic Coupling  Structures for TFLN
  Integrated Circuits for Quantum Applications
type: conference_abstract
user_id: '42449'
year: '2024'
...
---
_id: '57089'
author:
- first_name: Stephan
  full_name: Kruse, Stephan
  id: '38254'
  last_name: Kruse
- first_name: Benjamin
  full_name: Brecht, Benjamin
  id: '27150'
  last_name: Brecht
  orcid: '0000-0003-4140-0556 '
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Laura Maria
  full_name: Serino, Laura Maria
  id: '88242'
  last_name: Serino
citation:
  ama: Kruse S, Brecht B, Silberhorn C, Serino LM. Quantenoptisch-unterstütztes Sende-/Empfangssystem.
    Published online 2024.
  apa: Kruse, S., Brecht, B., Silberhorn, C., &#38; Serino, L. M. (2024). <i>Quantenoptisch-unterstütztes
    Sende-/Empfangssystem</i>.
  bibtex: '@article{Kruse_Brecht_Silberhorn_Serino_2024, title={Quantenoptisch-unterstütztes
    Sende-/Empfangssystem}, author={Kruse, Stephan and Brecht, Benjamin and Silberhorn,
    Christine and Serino, Laura Maria}, year={2024} }'
  chicago: Kruse, Stephan, Benjamin Brecht, Christine Silberhorn, and Laura Maria
    Serino. “Quantenoptisch-Unterstütztes Sende-/Empfangssystem,” 2024.
  ieee: S. Kruse, B. Brecht, C. Silberhorn, and L. M. Serino, “Quantenoptisch-unterstütztes
    Sende-/Empfangssystem.” 2024.
  mla: Kruse, Stephan, et al. <i>Quantenoptisch-Unterstütztes Sende-/Empfangssystem</i>.
    2024.
  short: S. Kruse, B. Brecht, C. Silberhorn, L.M. Serino, (2024).
date_created: 2024-11-14T16:11:10Z
date_updated: 2024-11-15T13:58:41Z
department:
- _id: '623'
- _id: '58'
ipc: G01S 7/481
ipn: 10 2023 203 697.5
publication_date: 2024-10-24
status: public
title: Quantenoptisch-unterstütztes Sende-/Empfangssystem
type: patent
user_id: '38254'
year: '2024'
...
---
_id: '57743'
article_number: '023717'
author:
- first_name: Suchitra
  full_name: Krishnaswamy, Suchitra
  id: '78347'
  last_name: Krishnaswamy
- first_name: Fabian
  full_name: Schlue, Fabian
  id: '63579'
  last_name: Schlue
- first_name: L.
  full_name: Ares, L.
  last_name: Ares
- first_name: V.
  full_name: Dyachuk, V.
  last_name: Dyachuk
- first_name: Michael
  full_name: Stefszky, Michael
  id: '42777'
  last_name: Stefszky
- first_name: Benjamin
  full_name: Brecht, Benjamin
  id: '27150'
  last_name: Brecht
  orcid: '0000-0003-4140-0556 '
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Jan
  full_name: Sperling, Jan
  id: '75127'
  last_name: Sperling
  orcid: 0000-0002-5844-3205
citation:
  ama: Krishnaswamy S, Schlue F, Ares L, et al. Experimental retrieval of photon statistics
    from click detection. <i>Physical Review A</i>. 2024;110(2). doi:<a href="https://doi.org/10.1103/physreva.110.023717">10.1103/physreva.110.023717</a>
  apa: Krishnaswamy, S., Schlue, F., Ares, L., Dyachuk, V., Stefszky, M., Brecht,
    B., Silberhorn, C., &#38; Sperling, J. (2024). Experimental retrieval of photon
    statistics from click detection. <i>Physical Review A</i>, <i>110</i>(2), Article
    023717. <a href="https://doi.org/10.1103/physreva.110.023717">https://doi.org/10.1103/physreva.110.023717</a>
  bibtex: '@article{Krishnaswamy_Schlue_Ares_Dyachuk_Stefszky_Brecht_Silberhorn_Sperling_2024,
    title={Experimental retrieval of photon statistics from click detection}, volume={110},
    DOI={<a href="https://doi.org/10.1103/physreva.110.023717">10.1103/physreva.110.023717</a>},
    number={2023717}, journal={Physical Review A}, publisher={American Physical Society
    (APS)}, author={Krishnaswamy, Suchitra and Schlue, Fabian and Ares, L. and Dyachuk,
    V. and Stefszky, Michael and Brecht, Benjamin and Silberhorn, Christine and Sperling,
    Jan}, year={2024} }'
  chicago: Krishnaswamy, Suchitra, Fabian Schlue, L. Ares, V. Dyachuk, Michael Stefszky,
    Benjamin Brecht, Christine Silberhorn, and Jan Sperling. “Experimental Retrieval
    of Photon Statistics from Click Detection.” <i>Physical Review A</i> 110, no.
    2 (2024). <a href="https://doi.org/10.1103/physreva.110.023717">https://doi.org/10.1103/physreva.110.023717</a>.
  ieee: 'S. Krishnaswamy <i>et al.</i>, “Experimental retrieval of photon statistics
    from click detection,” <i>Physical Review A</i>, vol. 110, no. 2, Art. no. 023717,
    2024, doi: <a href="https://doi.org/10.1103/physreva.110.023717">10.1103/physreva.110.023717</a>.'
  mla: Krishnaswamy, Suchitra, et al. “Experimental Retrieval of Photon Statistics
    from Click Detection.” <i>Physical Review A</i>, vol. 110, no. 2, 023717, American
    Physical Society (APS), 2024, doi:<a href="https://doi.org/10.1103/physreva.110.023717">10.1103/physreva.110.023717</a>.
  short: S. Krishnaswamy, F. Schlue, L. Ares, V. Dyachuk, M. Stefszky, B. Brecht,
    C. Silberhorn, J. Sperling, Physical Review A 110 (2024).
date_created: 2024-12-11T15:33:08Z
date_updated: 2024-12-11T15:35:07Z
department:
- _id: '623'
- _id: '15'
- _id: '170'
- _id: '706'
- _id: '429'
- _id: '623'
doi: 10.1103/physreva.110.023717
intvolume: '       110'
issue: '2'
language:
- iso: eng
publication: Physical Review A
publication_identifier:
  issn:
  - 2469-9926
  - 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Experimental retrieval of photon statistics from click detection
type: journal_article
user_id: '75127'
volume: 110
year: '2024'
...
---
_id: '32097'
author:
- first_name: Tobias
  full_name: Weich, Tobias
  id: '49178'
  last_name: Weich
  orcid: 0000-0002-9648-6919
- first_name: Yannick
  full_name: Guedes Bonthonneau, Yannick
  last_name: Guedes Bonthonneau
- first_name: Colin
  full_name: Guillarmou, Colin
  last_name: Guillarmou
citation:
  ama: 'Weich T, Guedes Bonthonneau Y, Guillarmou C. SRB Measures of Anosov Actions.
    <i>Journal of Differential Geometry</i>. 2024;128:959-1026. doi:<a href="https://doi.org/
    DOI: 10.4310/jdg/1729092452"> DOI: 10.4310/jdg/1729092452</a>'
  apa: 'Weich, T., Guedes Bonthonneau, Y., &#38; Guillarmou, C. (2024). SRB Measures
    of Anosov Actions. <i>Journal of Differential Geometry</i>, <i>128</i>, 959–1026.
    <a href="https://doi.org/ DOI: 10.4310/jdg/1729092452">https://doi.org/ DOI: 10.4310/jdg/1729092452</a>'
  bibtex: '@article{Weich_Guedes Bonthonneau_Guillarmou_2024, title={SRB Measures
    of Anosov Actions}, volume={128}, DOI={<a href="https://doi.org/ DOI: 10.4310/jdg/1729092452">
    DOI: 10.4310/jdg/1729092452</a>}, journal={Journal of Differential Geometry},
    author={Weich, Tobias and Guedes Bonthonneau, Yannick and Guillarmou, Colin},
    year={2024}, pages={959–1026} }'
  chicago: 'Weich, Tobias, Yannick Guedes Bonthonneau, and Colin Guillarmou. “SRB
    Measures of Anosov Actions.” <i>Journal of Differential Geometry</i> 128 (2024):
    959–1026. <a href="https://doi.org/ DOI: 10.4310/jdg/1729092452">https://doi.org/
    DOI: 10.4310/jdg/1729092452</a>.'
  ieee: 'T. Weich, Y. Guedes Bonthonneau, and C. Guillarmou, “SRB Measures of Anosov
    Actions,” <i>Journal of Differential Geometry</i>, vol. 128, pp. 959–1026, 2024,
    doi: <a href="https://doi.org/ DOI: 10.4310/jdg/1729092452"> DOI: 10.4310/jdg/1729092452</a>.'
  mla: 'Weich, Tobias, et al. “SRB Measures of Anosov Actions.” <i>Journal of Differential
    Geometry</i>, vol. 128, 2024, pp. 959–1026, doi:<a href="https://doi.org/ DOI:
    10.4310/jdg/1729092452"> DOI: 10.4310/jdg/1729092452</a>.'
  short: T. Weich, Y. Guedes Bonthonneau, C. Guillarmou, Journal of Differential Geometry
    128 (2024) 959–1026.
date_created: 2022-06-22T09:56:23Z
date_updated: 2025-01-02T15:39:43Z
ddc:
- '510'
department:
- _id: '10'
- _id: '623'
- _id: '548'
doi: ' DOI: 10.4310/jdg/1729092452'
external_id:
  arxiv:
  - https://arxiv.org/abs/2103.12127
file:
- access_level: open_access
  content_type: application/pdf
  creator: weich
  date_created: 2022-06-22T09:56:08Z
  date_updated: 2022-06-22T09:56:08Z
  file_id: '32098'
  file_name: 2103.12127.pdf
  file_size: 745870
  relation: main_file
file_date_updated: 2022-06-22T09:56:08Z
has_accepted_license: '1'
intvolume: '       128'
language:
- iso: eng
oa: '1'
page: 959-1026
project:
- _id: '358'
  grant_number: '491392403'
  name: TRR 358 - Geodätische Flüsse und Weyl Kammer Flüsse auf affinen Gebäuden (Teilprojekt
    B04)
- _id: '355'
  grant_number: '422642921'
  name: Mikrolokale Methoden für hyperbolische Dynamiken
publication: Journal of Differential Geometry
status: public
title: SRB Measures of Anosov Actions
type: journal_article
user_id: '49178'
volume: 128
year: '2024'
...
---
_id: '50287'
author:
- first_name: Stephan
  full_name: Kruse, Stephan
  id: '38254'
  last_name: Kruse
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Pascal
  full_name: Kneuper, Pascal
  id: '47367'
  last_name: Kneuper
- first_name: Heiko G.
  full_name: Kurz, Heiko G.
  last_name: Kurz
- first_name: March-Michael
  full_name: Meinecke, March-Michael
  last_name: Meinecke
- first_name: Christoph
  full_name: Scheytt, Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
citation:
  ama: 'Kruse S, Schwabe T, Kneuper P, Kurz HG, Meinecke M-M, Scheytt C. Analysis
    and Simulation of a Photonic Multiband FMCW Radar Sensor System using Nyquist
    Pulses. In: <i>German Microwave Conference (GeMiC) </i>. ; 2024. doi:<a href="https://doi.org/10.23919/GeMiC59120.2024.10485320">10.23919/GeMiC59120.2024.10485320</a>'
  apa: Kruse, S., Schwabe, T., Kneuper, P., Kurz, H. G., Meinecke, M.-M., &#38; Scheytt,
    C. (2024). Analysis and Simulation of a Photonic Multiband FMCW Radar Sensor System
    using Nyquist Pulses. <i>German Microwave Conference (GeMiC) </i>. <a href="https://doi.org/10.23919/GeMiC59120.2024.10485320">https://doi.org/10.23919/GeMiC59120.2024.10485320</a>
  bibtex: '@inproceedings{Kruse_Schwabe_Kneuper_Kurz_Meinecke_Scheytt_2024, place={Duisburg},
    title={Analysis and Simulation of a Photonic Multiband FMCW Radar Sensor System
    using Nyquist Pulses}, DOI={<a href="https://doi.org/10.23919/GeMiC59120.2024.10485320">10.23919/GeMiC59120.2024.10485320</a>},
    booktitle={German Microwave Conference (GeMiC) }, author={Kruse, Stephan and Schwabe,
    Tobias and Kneuper, Pascal and Kurz, Heiko G. and Meinecke, March-Michael and
    Scheytt, Christoph}, year={2024} }'
  chicago: Kruse, Stephan, Tobias Schwabe, Pascal Kneuper, Heiko G. Kurz, March-Michael
    Meinecke, and Christoph Scheytt. “Analysis and Simulation of a Photonic Multiband
    FMCW Radar Sensor System Using Nyquist Pulses.” In <i>German Microwave Conference
    (GeMiC) </i>. Duisburg, 2024. <a href="https://doi.org/10.23919/GeMiC59120.2024.10485320">https://doi.org/10.23919/GeMiC59120.2024.10485320</a>.
  ieee: 'S. Kruse, T. Schwabe, P. Kneuper, H. G. Kurz, M.-M. Meinecke, and C. Scheytt,
    “Analysis and Simulation of a Photonic Multiband FMCW Radar Sensor System using
    Nyquist Pulses,” 2024, doi: <a href="https://doi.org/10.23919/GeMiC59120.2024.10485320">10.23919/GeMiC59120.2024.10485320</a>.'
  mla: Kruse, Stephan, et al. “Analysis and Simulation of a Photonic Multiband FMCW
    Radar Sensor System Using Nyquist Pulses.” <i>German Microwave Conference (GeMiC)
    </i>, 2024, doi:<a href="https://doi.org/10.23919/GeMiC59120.2024.10485320">10.23919/GeMiC59120.2024.10485320</a>.
  short: 'S. Kruse, T. Schwabe, P. Kneuper, H.G. Kurz, M.-M. Meinecke, C. Scheytt,
    in: German Microwave Conference (GeMiC) , Duisburg, 2024.'
conference:
  end_date: 2024.03.13
  start_date: 2024.03.11
date_created: 2024-01-09T08:12:04Z
date_updated: 2025-02-25T06:08:18Z
department:
- _id: '58'
- _id: '623'
doi: 10.23919/GeMiC59120.2024.10485320
language:
- iso: eng
place: Duisburg
publication: 'German Microwave Conference (GeMiC) '
status: public
title: Analysis and Simulation of a Photonic Multiband FMCW Radar Sensor System using
  Nyquist Pulses
type: conference
user_id: '38254'
year: '2024'
...
---
_id: '54785'
author:
- first_name: Stephan
  full_name: Kruse, Stephan
  id: '38254'
  last_name: Kruse
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Pascal
  full_name: Kneuper, Pascal
  id: '47367'
  last_name: Kneuper
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
citation:
  ama: 'Kruse S, Schwabe T, Kneuper P, Scheytt JC. A Photonic Multiband Radar Transmitter
    Architecture with Tailored Nonlinear Transmission Line. In: <i>INTERNATIONAL CONFERENCE
    RADAR 2024</i>. ; 2024.'
  apa: Kruse, S., Schwabe, T., Kneuper, P., &#38; Scheytt, J. C. (2024). A Photonic
    Multiband Radar Transmitter Architecture with Tailored Nonlinear Transmission
    Line. <i>INTERNATIONAL CONFERENCE RADAR 2024</i>. INTERNATIONAL CONFERENCE RADAR
    2024, RENNES.
  bibtex: '@inproceedings{Kruse_Schwabe_Kneuper_Scheytt_2024, title={A Photonic Multiband
    Radar Transmitter Architecture with Tailored Nonlinear Transmission Line}, booktitle={INTERNATIONAL
    CONFERENCE RADAR 2024}, author={Kruse, Stephan and Schwabe, Tobias and Kneuper,
    Pascal and Scheytt, J. Christoph}, year={2024} }'
  chicago: Kruse, Stephan, Tobias Schwabe, Pascal Kneuper, and J. Christoph Scheytt.
    “A Photonic Multiband Radar Transmitter Architecture with Tailored Nonlinear Transmission
    Line.” In <i>INTERNATIONAL CONFERENCE RADAR 2024</i>, 2024.
  ieee: S. Kruse, T. Schwabe, P. Kneuper, and J. C. Scheytt, “A Photonic Multiband
    Radar Transmitter Architecture with Tailored Nonlinear Transmission Line,” presented
    at the INTERNATIONAL CONFERENCE RADAR 2024, RENNES, 2024.
  mla: Kruse, Stephan, et al. “A Photonic Multiband Radar Transmitter Architecture
    with Tailored Nonlinear Transmission Line.” <i>INTERNATIONAL CONFERENCE RADAR
    2024</i>, 2024.
  short: 'S. Kruse, T. Schwabe, P. Kneuper, J.C. Scheytt, in: INTERNATIONAL CONFERENCE
    RADAR 2024, 2024.'
conference:
  end_date: 2024-10-25
  location: RENNES
  name: INTERNATIONAL CONFERENCE RADAR 2024
  start_date: 2024-10-21
date_created: 2024-06-17T10:08:17Z
date_updated: 2025-02-25T06:06:04Z
department:
- _id: '58'
- _id: '623'
language:
- iso: eng
publication: INTERNATIONAL CONFERENCE RADAR 2024
status: public
title: A Photonic Multiband Radar Transmitter Architecture with Tailored Nonlinear
  Transmission Line
type: conference
user_id: '38254'
year: '2024'
...
---
_id: '53797'
author:
- first_name: Stephan
  full_name: Kruse, Stephan
  id: '38254'
  last_name: Kruse
- first_name: Pascal
  full_name: Kneuper, Pascal
  id: '47367'
  last_name: Kneuper
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Heiko G.
  full_name: Kurz, Heiko G.
  last_name: Kurz
- first_name: Marc-Michael
  full_name: Meinecke, Marc-Michael
  last_name: Meinecke
- first_name: María A.
  full_name: Gonzalez-Huici, María A.
  last_name: Gonzalez-Huici
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
citation:
  ama: 'Kruse S, Kneuper P, Schwabe T, et al. Phase Noise Analysis of Photonic Radar
    Systems with Optical LO Distribution. In: <i>International Conference on Microwaves
    for Intelligent Mobility (ICMIM)</i>. ; 2024.'
  apa: Kruse, S., Kneuper, P., Schwabe, T., Kurz, H. G., Meinecke, M.-M., Gonzalez-Huici,
    M. A., &#38; Scheytt, J. C. (2024). Phase Noise Analysis of Photonic Radar Systems
    with Optical LO Distribution. <i>International Conference on Microwaves for Intelligent
    Mobility (ICMIM)</i>.
  bibtex: '@inproceedings{Kruse_Kneuper_Schwabe_Kurz_Meinecke_Gonzalez-Huici_Scheytt_2024,
    place={Boppard }, title={Phase Noise Analysis of Photonic Radar Systems with Optical
    LO Distribution}, booktitle={International Conference on Microwaves for Intelligent
    Mobility (ICMIM)}, author={Kruse, Stephan and Kneuper, Pascal and Schwabe, Tobias
    and Kurz, Heiko G. and Meinecke, Marc-Michael and Gonzalez-Huici, María A. and
    Scheytt, J. Christoph}, year={2024} }'
  chicago: Kruse, Stephan, Pascal Kneuper, Tobias Schwabe, Heiko G. Kurz, Marc-Michael
    Meinecke, María A. Gonzalez-Huici, and J. Christoph Scheytt. “Phase Noise Analysis
    of Photonic Radar Systems with Optical LO Distribution.” In <i>International Conference
    on Microwaves for Intelligent Mobility (ICMIM)</i>. Boppard , 2024.
  ieee: S. Kruse <i>et al.</i>, “Phase Noise Analysis of Photonic Radar Systems with
    Optical LO Distribution,” 2024.
  mla: Kruse, Stephan, et al. “Phase Noise Analysis of Photonic Radar Systems with
    Optical LO Distribution.” <i>International Conference on Microwaves for Intelligent
    Mobility (ICMIM)</i>, 2024.
  short: 'S. Kruse, P. Kneuper, T. Schwabe, H.G. Kurz, M.-M. Meinecke, M.A. Gonzalez-Huici,
    J.C. Scheytt, in: International Conference on Microwaves for Intelligent Mobility
    (ICMIM), Boppard , 2024.'
date_created: 2024-04-30T11:57:44Z
date_updated: 2025-02-25T06:05:16Z
department:
- _id: '58'
- _id: '623'
language:
- iso: eng
place: 'Boppard '
publication: International Conference on Microwaves for Intelligent Mobility (ICMIM)
related_material:
  link:
  - relation: research_paper
    url: https://ieeexplore.ieee.org/document/10654229
status: public
title: Phase Noise Analysis of Photonic Radar Systems with Optical LO Distribution
type: conference
user_id: '38254'
year: '2024'
...
---
_id: '53800'
author:
- first_name: Stephan
  full_name: Kruse, Stephan
  id: '38254'
  last_name: Kruse
- first_name: Jan
  full_name: Brockmeier, Jan
  id: '67349'
  last_name: Brockmeier
- first_name: Pascal
  full_name: Kneuper, Pascal
  id: '47367'
  last_name: Kneuper
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Heiko G.
  full_name: Kurz, Heiko G.
  last_name: Kurz
- first_name: Marc Michael
  full_name: Meinecke, Marc Michael
  last_name: Meinecke
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
citation:
  ama: 'Kruse S, Brockmeier J, Kneuper P, et al. Doppler Analysis of a Lidar-Photonic
    Radar Combined Sensor System. In: <i> International Radar Symposium (IRS)</i>.
    ; 2024.'
  apa: Kruse, S., Brockmeier, J., Kneuper, P., Schwabe, T., Kurz, H. G., Meinecke,
    M. M., &#38; Scheytt, J. C. (2024). Doppler Analysis of a Lidar-Photonic Radar
    Combined Sensor System. <i> International Radar Symposium (IRS)</i>.
  bibtex: '@inproceedings{Kruse_Brockmeier_Kneuper_Schwabe_Kurz_Meinecke_Scheytt_2024,
    title={Doppler Analysis of a Lidar-Photonic Radar Combined Sensor System}, booktitle={
    International Radar Symposium (IRS)}, author={Kruse, Stephan and Brockmeier, Jan
    and Kneuper, Pascal and Schwabe, Tobias and Kurz, Heiko G. and Meinecke, Marc
    Michael and Scheytt, J. Christoph}, year={2024} }'
  chicago: Kruse, Stephan, Jan Brockmeier, Pascal Kneuper, Tobias Schwabe, Heiko G.
    Kurz, Marc Michael Meinecke, and J. Christoph Scheytt. “Doppler Analysis of a
    Lidar-Photonic Radar Combined Sensor System.” In <i> International Radar Symposium
    (IRS)</i>, 2024.
  ieee: S. Kruse <i>et al.</i>, “Doppler Analysis of a Lidar-Photonic Radar Combined
    Sensor System,” 2024.
  mla: Kruse, Stephan, et al. “Doppler Analysis of a Lidar-Photonic Radar Combined
    Sensor System.” <i> International Radar Symposium (IRS)</i>, 2024.
  short: 'S. Kruse, J. Brockmeier, P. Kneuper, T. Schwabe, H.G. Kurz, M.M. Meinecke,
    J.C. Scheytt, in:  International Radar Symposium (IRS), 2024.'
date_created: 2024-04-30T12:03:33Z
date_updated: 2025-02-25T06:00:38Z
department:
- _id: '58'
- _id: '623'
language:
- iso: eng
publication: ' International Radar Symposium (IRS)'
related_material:
  link:
  - relation: research_paper
    url: https://ieeexplore.ieee.org/document/10644287
status: public
title: Doppler Analysis of a Lidar-Photonic Radar Combined Sensor System
type: conference
user_id: '38254'
year: '2024'
...
---
_id: '59269'
abstract:
- lang: eng
  text: Ferroelectric materials play a crucial role in a broad range of technologies
    due to their unique properties that are deeply connected to the pattern and behavior
    of their ferroelectric (FE) domains. Chief among them, barium titanate (BaTiO3;
    BTO) sees widespread applications such as in electronics but equally is a ferroelectric
    model system for fundamental research, e.g., to study the interplay of such FE
    domains, the domain walls (DWs), and their macroscopic properties, owed to BTO’s
    multiple and experimentally accessible phase transitions. Here, we employ Second
    Harmonic Generation Microscopy (SHGM) to in situ investigate the cubic-to-tetragonal
    (at ∼126°C) and the tetragonal-to-orthorhombic (at ∼5°C) phase transition in single-crystalline
    BTO via three-dimensional (3D) DW mapping. We demonstrate that SHGM imaging provides
    the direct visualization of FE domain switching as well as the domain dynamics
    in 3D, shedding light on the interplay of the domain structure and phase transition.
    These results allow us to extract the different transition temperatures locally,
    to unveil the hysteresis behavior, and to determine the type of phase transition
    at play (first/second order) from the recorded SHGM data. The capabilities of
    SHGM in uncovering these crucial phenomena can easily be applied to other ferroelectrics
    to provide new possibilities for in situ engineering of advanced ferroic devices.
article_number: '154102'
article_type: original
author:
- first_name: Benjamin
  full_name: Kirbus, Benjamin
  last_name: Kirbus
- first_name: Samuel D.
  full_name: Seddon, Samuel D.
  last_name: Seddon
- first_name: Iuliia
  full_name: Kiseleva, Iuliia
  last_name: Kiseleva
- first_name: Elke
  full_name: Beyreuther, Elke
  last_name: Beyreuther
- first_name: Michael
  full_name: Rüsing, Michael
  id: '22501'
  last_name: Rüsing
  orcid: 0000-0003-4682-4577
- first_name: Lukas M.
  full_name: Eng, Lukas M.
  last_name: Eng
citation:
  ama: Kirbus B, Seddon SD, Kiseleva I, Beyreuther E, Rüsing M, Eng LM. Probing ferroelectric
    phase transitions in barium titanate single crystals via in-situ second harmonic
    generation microscopy. <i>Journal of Applied Physics</i>. 2024;136(15). doi:<a
    href="https://doi.org/10.1063/5.0237769">10.1063/5.0237769</a>
  apa: Kirbus, B., Seddon, S. D., Kiseleva, I., Beyreuther, E., Rüsing, M., &#38;
    Eng, L. M. (2024). Probing ferroelectric phase transitions in barium titanate
    single crystals via in-situ second harmonic generation microscopy. <i>Journal
    of Applied Physics</i>, <i>136</i>(15), Article 154102. <a href="https://doi.org/10.1063/5.0237769">https://doi.org/10.1063/5.0237769</a>
  bibtex: '@article{Kirbus_Seddon_Kiseleva_Beyreuther_Rüsing_Eng_2024, title={Probing
    ferroelectric phase transitions in barium titanate single crystals via in-situ
    second harmonic generation microscopy}, volume={136}, DOI={<a href="https://doi.org/10.1063/5.0237769">10.1063/5.0237769</a>},
    number={15154102}, journal={Journal of Applied Physics}, publisher={AIP Publishing},
    author={Kirbus, Benjamin and Seddon, Samuel D. and Kiseleva, Iuliia and Beyreuther,
    Elke and Rüsing, Michael and Eng, Lukas M.}, year={2024} }'
  chicago: Kirbus, Benjamin, Samuel D. Seddon, Iuliia Kiseleva, Elke Beyreuther, Michael
    Rüsing, and Lukas M. Eng. “Probing Ferroelectric Phase Transitions in Barium Titanate
    Single Crystals via In-Situ Second Harmonic Generation Microscopy.” <i>Journal
    of Applied Physics</i> 136, no. 15 (2024). <a href="https://doi.org/10.1063/5.0237769">https://doi.org/10.1063/5.0237769</a>.
  ieee: 'B. Kirbus, S. D. Seddon, I. Kiseleva, E. Beyreuther, M. Rüsing, and L. M.
    Eng, “Probing ferroelectric phase transitions in barium titanate single crystals
    via in-situ second harmonic generation microscopy,” <i>Journal of Applied Physics</i>,
    vol. 136, no. 15, Art. no. 154102, 2024, doi: <a href="https://doi.org/10.1063/5.0237769">10.1063/5.0237769</a>.'
  mla: Kirbus, Benjamin, et al. “Probing Ferroelectric Phase Transitions in Barium
    Titanate Single Crystals via In-Situ Second Harmonic Generation Microscopy.” <i>Journal
    of Applied Physics</i>, vol. 136, no. 15, 154102, AIP Publishing, 2024, doi:<a
    href="https://doi.org/10.1063/5.0237769">10.1063/5.0237769</a>.
  short: B. Kirbus, S.D. Seddon, I. Kiseleva, E. Beyreuther, M. Rüsing, L.M. Eng,
    Journal of Applied Physics 136 (2024).
date_created: 2025-04-02T15:57:11Z
date_updated: 2025-04-02T15:59:55Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1063/5.0237769
intvolume: '       136'
issue: '15'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: ' https://doi.org/10.1063/5.0237769'
oa: '1'
publication: Journal of Applied Physics
publication_identifier:
  issn:
  - 0021-8979
  - 1089-7550
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
status: public
title: Probing ferroelectric phase transitions in barium titanate single crystals
  via in-situ second harmonic generation microscopy
type: journal_article
user_id: '22501'
volume: 136
year: '2024'
...
---
_id: '59271'
abstract:
- lang: eng
  text: Lithium niobate (LNO) and lithium tantalate (LTO) see widespread use in fundamental
    research and commercial technologies reaching from electronics over classical
    optics to integrated quantum communication. The mixed crystal system lithium niobate
    tantalate (LNT) allows for the dedicate engineering of material properties by
    combining the advantages of the two parental materials LNO and LTO. Vibrational
    spectroscopies such as Raman spectroscopy or (Fourier transform) infrared (IR)
    spectroscopy are vital techniques to provide detailed insight into the material
    properties, which is central to the analysis and optimization of devices. This
    work presents a joint experimental–theoretical approach allowing to unambiguously
    assign the spectral features in the LNT material family through both Raman and
    IR spectroscopy, as well as providing an in‐depth explanation for the observed
    scattering efficiencies based on first‐principles calculations. The phononic contribution
    to the static dielectric tensor is calculated from the experimental and theoretical
    data using the generalized Lyddane–Sachs–Teller relation and compared with the
    results of the first‐principles calculations.
author:
- first_name: Felix
  full_name: Bernhardt, Felix
  last_name: Bernhardt
- first_name: Soham
  full_name: Gharat, Soham
  last_name: Gharat
- first_name: Alexander
  full_name: Kapp, Alexander
  last_name: Kapp
- first_name: Florian
  full_name: Pfeiffer, Florian
  last_name: Pfeiffer
- first_name: Robin
  full_name: Buschbeck, Robin
  last_name: Buschbeck
- first_name: Franz
  full_name: Hempel, Franz
  last_name: Hempel
- first_name: Oleksiy
  full_name: Pashkin, Oleksiy
  last_name: Pashkin
- first_name: Susanne C.
  full_name: Kehr, Susanne C.
  last_name: Kehr
- first_name: Michael
  full_name: Rüsing, Michael
  id: '22501'
  last_name: Rüsing
  orcid: 0000-0003-4682-4577
- first_name: Simone
  full_name: Sanna, Simone
  last_name: Sanna
- first_name: Lukas M.
  full_name: Eng, Lukas M.
  last_name: Eng
citation:
  ama: 'Bernhardt F, Gharat S, Kapp A, et al. Lattice Dynamics of LiNb(1–x)Ta(x)O3
    Solid Solutions: Theory and Experiment. <i>physica status solidi (a)</i>. 2024;222(1):2300968.
    doi:<a href="https://doi.org/10.1002/pssa.202300968">10.1002/pssa.202300968</a>'
  apa: 'Bernhardt, F., Gharat, S., Kapp, A., Pfeiffer, F., Buschbeck, R., Hempel,
    F., Pashkin, O., Kehr, S. C., Rüsing, M., Sanna, S., &#38; Eng, L. M. (2024).
    Lattice Dynamics of LiNb(1–x)Ta(x)O3 Solid Solutions: Theory and Experiment. <i>Physica
    Status Solidi (a)</i>, <i>222</i>(1), 2300968. <a href="https://doi.org/10.1002/pssa.202300968">https://doi.org/10.1002/pssa.202300968</a>'
  bibtex: '@article{Bernhardt_Gharat_Kapp_Pfeiffer_Buschbeck_Hempel_Pashkin_Kehr_Rüsing_Sanna_et
    al._2024, title={Lattice Dynamics of LiNb(1–x)Ta(x)O3 Solid Solutions: Theory
    and Experiment}, volume={222}, DOI={<a href="https://doi.org/10.1002/pssa.202300968">10.1002/pssa.202300968</a>},
    number={1}, journal={physica status solidi (a)}, publisher={Wiley}, author={Bernhardt,
    Felix and Gharat, Soham and Kapp, Alexander and Pfeiffer, Florian and Buschbeck,
    Robin and Hempel, Franz and Pashkin, Oleksiy and Kehr, Susanne C. and Rüsing,
    Michael and Sanna, Simone and et al.}, year={2024}, pages={2300968} }'
  chicago: 'Bernhardt, Felix, Soham Gharat, Alexander Kapp, Florian Pfeiffer, Robin
    Buschbeck, Franz Hempel, Oleksiy Pashkin, et al. “Lattice Dynamics of LiNb(1–x)Ta(x)O3
    Solid Solutions: Theory and Experiment.” <i>Physica Status Solidi (a)</i> 222,
    no. 1 (2024): 2300968. <a href="https://doi.org/10.1002/pssa.202300968">https://doi.org/10.1002/pssa.202300968</a>.'
  ieee: 'F. Bernhardt <i>et al.</i>, “Lattice Dynamics of LiNb(1–x)Ta(x)O3 Solid Solutions:
    Theory and Experiment,” <i>physica status solidi (a)</i>, vol. 222, no. 1, p.
    2300968, 2024, doi: <a href="https://doi.org/10.1002/pssa.202300968">10.1002/pssa.202300968</a>.'
  mla: 'Bernhardt, Felix, et al. “Lattice Dynamics of LiNb(1–x)Ta(x)O3 Solid Solutions:
    Theory and Experiment.” <i>Physica Status Solidi (a)</i>, vol. 222, no. 1, Wiley,
    2024, p. 2300968, doi:<a href="https://doi.org/10.1002/pssa.202300968">10.1002/pssa.202300968</a>.'
  short: F. Bernhardt, S. Gharat, A. Kapp, F. Pfeiffer, R. Buschbeck, F. Hempel, O.
    Pashkin, S.C. Kehr, M. Rüsing, S. Sanna, L.M. Eng, Physica Status Solidi (a) 222
    (2024) 2300968.
date_created: 2025-04-02T16:04:58Z
date_updated: 2025-04-02T16:07:19Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1002/pssa.202300968
intvolume: '       222'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1002/pssa.202300968
oa: '1'
page: '2300968'
publication: physica status solidi (a)
publication_identifier:
  issn:
  - 1862-6300
  - 1862-6319
publication_status: published
publisher: Wiley
status: public
title: 'Lattice Dynamics of LiNb(1–x)Ta(x)O3 Solid Solutions: Theory and Experiment'
type: journal_article
user_id: '22501'
volume: 222
year: '2024'
...
---
_id: '59270'
abstract:
- lang: eng
  text: Lithium niobate tantalate (LiNb1−xTaxO3, LNT) solid solutions offer exciting
    new possibilities for applications ranging from optics, piezotronics, and electronics
    beyond the capabilities of the widely used singular compounds of lithium niobate
    (LiNbO3, LN) or lithium tantalate (LiTaO3, LT). Crystal growth of homogeneous
    LNT single crystals by the Czochralski method is still challenging. One key aspect
    of homogeneous growth is the accurate knowledge of thermal conductivity through
    the crystal boule during the growth, which is central to control the crystal growth.
    Therefore, the temperature dependent thermal conductivity of pure LN, LT, and
    LNT solid solutions, as well as of selected doped LN and LT crystals (Mg, Zn)
    was investigated across the temperature range from 300 to 1300 K. The results
    that span across the whole composition range can directly be applied for optimizing
    growth conditions of both LNT solid solutions as well as doped and undoped LN
    and LT crystals.
article_number: '176549'
article_type: original
author:
- first_name: Umar
  full_name: Bashir, Umar
  last_name: Bashir
- first_name: Michael
  full_name: Rüsing, Michael
  id: '22501'
  last_name: Rüsing
  orcid: 0000-0003-4682-4577
- first_name: Detlef
  full_name: Klimm, Detlef
  last_name: Klimm
- first_name: Roberts
  full_name: Blukis, Roberts
  last_name: Blukis
- first_name: Boris
  full_name: Koppitz, Boris
  last_name: Koppitz
- first_name: Lukas M.
  full_name: Eng, Lukas M.
  last_name: Eng
- first_name: Matthias
  full_name: Bickermann, Matthias
  last_name: Bickermann
- first_name: Steffen
  full_name: Ganschow, Steffen
  last_name: Ganschow
citation:
  ama: Bashir U, Rüsing M, Klimm D, et al. Thermal conductivity in solid solutions
    of lithium niobate tantalate single crystals from 300 K up to 1300 K. <i>Journal
    of Alloys and Compounds</i>. 2024;1008. doi:<a href="https://doi.org/10.1016/j.jallcom.2024.176549">10.1016/j.jallcom.2024.176549</a>
  apa: Bashir, U., Rüsing, M., Klimm, D., Blukis, R., Koppitz, B., Eng, L. M., Bickermann,
    M., &#38; Ganschow, S. (2024). Thermal conductivity in solid solutions of lithium
    niobate tantalate single crystals from 300 K up to 1300 K. <i>Journal of Alloys
    and Compounds</i>, <i>1008</i>, Article 176549. <a href="https://doi.org/10.1016/j.jallcom.2024.176549">https://doi.org/10.1016/j.jallcom.2024.176549</a>
  bibtex: '@article{Bashir_Rüsing_Klimm_Blukis_Koppitz_Eng_Bickermann_Ganschow_2024,
    title={Thermal conductivity in solid solutions of lithium niobate tantalate single
    crystals from 300 K up to 1300 K}, volume={1008}, DOI={<a href="https://doi.org/10.1016/j.jallcom.2024.176549">10.1016/j.jallcom.2024.176549</a>},
    number={176549}, journal={Journal of Alloys and Compounds}, publisher={Elsevier
    BV}, author={Bashir, Umar and Rüsing, Michael and Klimm, Detlef and Blukis, Roberts
    and Koppitz, Boris and Eng, Lukas M. and Bickermann, Matthias and Ganschow, Steffen},
    year={2024} }'
  chicago: Bashir, Umar, Michael Rüsing, Detlef Klimm, Roberts Blukis, Boris Koppitz,
    Lukas M. Eng, Matthias Bickermann, and Steffen Ganschow. “Thermal Conductivity
    in Solid Solutions of Lithium Niobate Tantalate Single Crystals from 300 K up
    to 1300 K.” <i>Journal of Alloys and Compounds</i> 1008 (2024). <a href="https://doi.org/10.1016/j.jallcom.2024.176549">https://doi.org/10.1016/j.jallcom.2024.176549</a>.
  ieee: 'U. Bashir <i>et al.</i>, “Thermal conductivity in solid solutions of lithium
    niobate tantalate single crystals from 300 K up to 1300 K,” <i>Journal of Alloys
    and Compounds</i>, vol. 1008, Art. no. 176549, 2024, doi: <a href="https://doi.org/10.1016/j.jallcom.2024.176549">10.1016/j.jallcom.2024.176549</a>.'
  mla: Bashir, Umar, et al. “Thermal Conductivity in Solid Solutions of Lithium Niobate
    Tantalate Single Crystals from 300 K up to 1300 K.” <i>Journal of Alloys and Compounds</i>,
    vol. 1008, 176549, Elsevier BV, 2024, doi:<a href="https://doi.org/10.1016/j.jallcom.2024.176549">10.1016/j.jallcom.2024.176549</a>.
  short: U. Bashir, M. Rüsing, D. Klimm, R. Blukis, B. Koppitz, L.M. Eng, M. Bickermann,
    S. Ganschow, Journal of Alloys and Compounds 1008 (2024).
date_created: 2025-04-02T16:00:56Z
date_updated: 2025-04-02T16:02:26Z
department:
- _id: '15'
- _id: '288'
- _id: '623'
doi: 10.1016/j.jallcom.2024.176549
intvolume: '      1008'
language:
- iso: eng
publication: Journal of Alloys and Compounds
publication_identifier:
  issn:
  - 0925-8388
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Thermal conductivity in solid solutions of lithium niobate tantalate single
  crystals from 300 K up to 1300 K
type: journal_article
user_id: '22501'
volume: 1008
year: '2024'
...
---
_id: '59272'
abstract:
- lang: eng
  text: 'Ferroelectrics such as LiNbO3 (LN) are wide-band-gap insulators that may
    show a high local electric conductivity at the domain walls (DWs). The latter
    are interfaces separating regions of noncollinear polarization, which can be manipulated
    to build integrated nanoelectronic elements. In the present work, we model different
    DW types in LN from first principles. Our models reveal the DW morphology and
    shed light on their electronic properties: A strong band bending is predicted
    for charged DWs, leading to local metallicity. Defect trapping at the DW may further
    enhance the electric conductivity.'
article_number: L042015
author:
- first_name: Leonard M.
  full_name: Verhoff, Leonard M.
  last_name: Verhoff
- first_name: Mike N.
  full_name: Pionteck, Mike N.
  last_name: Pionteck
- first_name: Michael
  full_name: Rüsing, Michael
  id: '22501'
  last_name: Rüsing
  orcid: 0000-0003-4682-4577
- first_name: Holger
  full_name: Fritze, Holger
  last_name: Fritze
- first_name: Lukas M.
  full_name: Eng, Lukas M.
  last_name: Eng
- first_name: Simone
  full_name: Sanna, Simone
  last_name: Sanna
citation:
  ama: 'Verhoff LM, Pionteck MN, Rüsing M, Fritze H, Eng LM, Sanna S. Two-dimensional
    electronic conductivity in insulating ferroelectrics: Peculiar properties of domain
    walls. <i>Physical Review Research</i>. 2024;6(4). doi:<a href="https://doi.org/10.1103/physrevresearch.6.l042015">10.1103/physrevresearch.6.l042015</a>'
  apa: 'Verhoff, L. M., Pionteck, M. N., Rüsing, M., Fritze, H., Eng, L. M., &#38;
    Sanna, S. (2024). Two-dimensional electronic conductivity in insulating ferroelectrics:
    Peculiar properties of domain walls. <i>Physical Review Research</i>, <i>6</i>(4),
    Article L042015. <a href="https://doi.org/10.1103/physrevresearch.6.l042015">https://doi.org/10.1103/physrevresearch.6.l042015</a>'
  bibtex: '@article{Verhoff_Pionteck_Rüsing_Fritze_Eng_Sanna_2024, title={Two-dimensional
    electronic conductivity in insulating ferroelectrics: Peculiar properties of domain
    walls}, volume={6}, DOI={<a href="https://doi.org/10.1103/physrevresearch.6.l042015">10.1103/physrevresearch.6.l042015</a>},
    number={4L042015}, journal={Physical Review Research}, publisher={American Physical
    Society (APS)}, author={Verhoff, Leonard M. and Pionteck, Mike N. and Rüsing,
    Michael and Fritze, Holger and Eng, Lukas M. and Sanna, Simone}, year={2024} }'
  chicago: 'Verhoff, Leonard M., Mike N. Pionteck, Michael Rüsing, Holger Fritze,
    Lukas M. Eng, and Simone Sanna. “Two-Dimensional Electronic Conductivity in Insulating
    Ferroelectrics: Peculiar Properties of Domain Walls.” <i>Physical Review Research</i>
    6, no. 4 (2024). <a href="https://doi.org/10.1103/physrevresearch.6.l042015">https://doi.org/10.1103/physrevresearch.6.l042015</a>.'
  ieee: 'L. M. Verhoff, M. N. Pionteck, M. Rüsing, H. Fritze, L. M. Eng, and S. Sanna,
    “Two-dimensional electronic conductivity in insulating ferroelectrics: Peculiar
    properties of domain walls,” <i>Physical Review Research</i>, vol. 6, no. 4, Art.
    no. L042015, 2024, doi: <a href="https://doi.org/10.1103/physrevresearch.6.l042015">10.1103/physrevresearch.6.l042015</a>.'
  mla: 'Verhoff, Leonard M., et al. “Two-Dimensional Electronic Conductivity in Insulating
    Ferroelectrics: Peculiar Properties of Domain Walls.” <i>Physical Review Research</i>,
    vol. 6, no. 4, L042015, American Physical Society (APS), 2024, doi:<a href="https://doi.org/10.1103/physrevresearch.6.l042015">10.1103/physrevresearch.6.l042015</a>.'
  short: L.M. Verhoff, M.N. Pionteck, M. Rüsing, H. Fritze, L.M. Eng, S. Sanna, Physical
    Review Research 6 (2024).
date_created: 2025-04-02T16:08:55Z
date_updated: 2025-04-02T16:10:59Z
department:
- _id: '623'
- _id: '288'
- _id: '15'
doi: 10.1103/physrevresearch.6.l042015
intvolume: '         6'
issue: '4'
language:
- iso: eng
main_file_link:
- url: https://jlupub.ub.uni-giessen.de/server/api/core/bitstreams/fb2b09e6-c0f8-4209-99a1-79fc81d9b1f9/content
publication: Physical Review Research
publication_identifier:
  issn:
  - 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Two-dimensional electronic conductivity in insulating ferroelectrics: Peculiar
  properties of domain walls'
type: journal_article
user_id: '22501'
volume: 6
year: '2024'
...
---
_id: '59273'
abstract:
- lang: eng
  text: Ferroelectric domain walls (DWs) are promising structures for assembling future
    nano-electronic circuit elements on a larger scale since reporting domain wall
    currents of up to 1 mA per single DW. One key requirement hereto is their reproducible
    manufacturing by gaining preparative control over domain size and domain wall
    conductivity (DWC). To date, most works on DWC have focused on exploring the fundamental
    electrical properties of individual DWs within single-shot experiments, with an
    emphasis on quantifying the origins of DWC. Very few reports exist when it comes
    to comparing the DWC properties between two separate DWs, and literally nothing
    exists where issues of reproducibility in DWC devices have been addressed. To
    fill this gap while facing the challenge of finding guidelines for achieving predictable
    DWC performance, we report on a procedure that allows us to reproducibly prepare
    single hexagonal domains of a predefined diameter into uniaxial ferroelectric
    lithium niobate single crystals of 200 and 300 μm thickness, respectively. We
    show that the domain diameter can be controlled with an uncertainty of a few percent.
    As-grown DWs are then subjected to a standard procedure of current-limited high-voltage
    DWC enhancement, and they repetitively reach a DWC increase of six orders of magnitude.
    While all resulting DWs show significantly enhanced DWC values, their individual
    current–voltage (I–V) characteristics exhibit different shapes, which can be explained
    by variations in their 3D real structure reflecting local heterogeneities by defects,
    DW pinning, and surface-near DW inclination.
article_type: original
author:
- first_name: Julius
  full_name: Ratzenberger, Julius
  last_name: Ratzenberger
- first_name: Iuliia
  full_name: Kiseleva, Iuliia
  last_name: Kiseleva
- first_name: Boris
  full_name: Koppitz, Boris
  last_name: Koppitz
- first_name: Elke
  full_name: Beyreuther, Elke
  last_name: Beyreuther
- first_name: Manuel
  full_name: Zahn, Manuel
  last_name: Zahn
- first_name: Joshua
  full_name: Gössel, Joshua
  last_name: Gössel
- first_name: Peter A.
  full_name: Hegarty, Peter A.
  last_name: Hegarty
- first_name: Zeeshan H.
  full_name: Amber, Zeeshan H.
  last_name: Amber
- first_name: Michael
  full_name: Rüsing, Michael
  id: '22501'
  last_name: Rüsing
  orcid: 0000-0003-4682-4577
- first_name: Lukas M.
  full_name: Eng, Lukas M.
  last_name: Eng
citation:
  ama: Ratzenberger J, Kiseleva I, Koppitz B, et al. Toward the reproducible fabrication
    of conductive ferroelectric domain walls into lithium niobate bulk single crystals.
    <i>Journal of Applied Physics</i>. 2024;136(10):104302. doi:<a href="https://doi.org/10.1063/5.0219300">10.1063/5.0219300</a>
  apa: Ratzenberger, J., Kiseleva, I., Koppitz, B., Beyreuther, E., Zahn, M., Gössel,
    J., Hegarty, P. A., Amber, Z. H., Rüsing, M., &#38; Eng, L. M. (2024). Toward
    the reproducible fabrication of conductive ferroelectric domain walls into lithium
    niobate bulk single crystals. <i>Journal of Applied Physics</i>, <i>136</i>(10),
    104302. <a href="https://doi.org/10.1063/5.0219300">https://doi.org/10.1063/5.0219300</a>
  bibtex: '@article{Ratzenberger_Kiseleva_Koppitz_Beyreuther_Zahn_Gössel_Hegarty_Amber_Rüsing_Eng_2024,
    title={Toward the reproducible fabrication of conductive ferroelectric domain
    walls into lithium niobate bulk single crystals}, volume={136}, DOI={<a href="https://doi.org/10.1063/5.0219300">10.1063/5.0219300</a>},
    number={10}, journal={Journal of Applied Physics}, publisher={AIP Publishing},
    author={Ratzenberger, Julius and Kiseleva, Iuliia and Koppitz, Boris and Beyreuther,
    Elke and Zahn, Manuel and Gössel, Joshua and Hegarty, Peter A. and Amber, Zeeshan
    H. and Rüsing, Michael and Eng, Lukas M.}, year={2024}, pages={104302} }'
  chicago: 'Ratzenberger, Julius, Iuliia Kiseleva, Boris Koppitz, Elke Beyreuther,
    Manuel Zahn, Joshua Gössel, Peter A. Hegarty, Zeeshan H. Amber, Michael Rüsing,
    and Lukas M. Eng. “Toward the Reproducible Fabrication of Conductive Ferroelectric
    Domain Walls into Lithium Niobate Bulk Single Crystals.” <i>Journal of Applied
    Physics</i> 136, no. 10 (2024): 104302. <a href="https://doi.org/10.1063/5.0219300">https://doi.org/10.1063/5.0219300</a>.'
  ieee: 'J. Ratzenberger <i>et al.</i>, “Toward the reproducible fabrication of conductive
    ferroelectric domain walls into lithium niobate bulk single crystals,” <i>Journal
    of Applied Physics</i>, vol. 136, no. 10, p. 104302, 2024, doi: <a href="https://doi.org/10.1063/5.0219300">10.1063/5.0219300</a>.'
  mla: Ratzenberger, Julius, et al. “Toward the Reproducible Fabrication of Conductive
    Ferroelectric Domain Walls into Lithium Niobate Bulk Single Crystals.” <i>Journal
    of Applied Physics</i>, vol. 136, no. 10, AIP Publishing, 2024, p. 104302, doi:<a
    href="https://doi.org/10.1063/5.0219300">10.1063/5.0219300</a>.
  short: J. Ratzenberger, I. Kiseleva, B. Koppitz, E. Beyreuther, M. Zahn, J. Gössel,
    P.A. Hegarty, Z.H. Amber, M. Rüsing, L.M. Eng, Journal of Applied Physics 136
    (2024) 104302.
date_created: 2025-04-02T16:12:29Z
date_updated: 2025-04-02T16:14:31Z
department:
- _id: '288'
- _id: '15'
- _id: '623'
doi: 10.1063/5.0219300
intvolume: '       136'
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: ' https://doi.org/10.1063/5.0219300'
oa: '1'
page: '104302'
publication: Journal of Applied Physics
publication_identifier:
  issn:
  - 0021-8979
  - 1089-7550
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
status: public
title: Toward the reproducible fabrication of conductive ferroelectric domain walls
  into lithium niobate bulk single crystals
type: journal_article
user_id: '22501'
volume: 136
year: '2024'
...
---
_id: '59274'
abstract:
- lang: eng
  text: 'Recently, ion exchange (IE) has been used to periodically modify the coercive
    field (Ec) of the crystal prior to periodic poling, to fabricate fine-pitch domain
    structures in Rb-doped KTiOPO4 (RKTP). Here, we use micro-Raman spectroscopy to
    understand the impact of IE on the vibrational modes related to the Rb/K lattice
    sites, TiO octahedra, and PO4 tetrahedra, which all form the basis of the RKTP
    crystal structure. We analyze the Raman spectra of three different RKTP samples:
    (1) a RKTP sample that shows a poled domain grating only, (2) a RKTP sample that
    has an Ec grating only, and (3) a RKTP sample that has both an Ec and a domain
    grating of the nominally same spacing. This allows us to determine the impact
    of IE on the vibrational modes of RKTP. We characterize the changes in the lower
    Raman peaks related to the alkali-metal ions, as well as observe lattice modifications
    induced by the incorporation of Rb+ that extend further into the crystal bulk
    than the expected IE depth. Moreover, the influence of IE on the domain walls
    is also manifested in their Raman peak shift. We discuss our results in terms
    of the deformation of the PO4and TiO groups. Our results highlight the intricate
    impact of IE on the crystal structure and how it facilitates periodic poling,
    paving the way for further development of the Ec-engineering technique.'
article_number: '214115'
article_type: original
author:
- first_name: Cherrie S. J.
  full_name: Lee, Cherrie S. J.
  last_name: Lee
- first_name: Carlota
  full_name: Canalias, Carlota
  last_name: Canalias
- first_name: Robin
  full_name: Buschbeck, Robin
  last_name: Buschbeck
- first_name: Boris
  full_name: Koppitz, Boris
  last_name: Koppitz
- first_name: Franz
  full_name: Hempel, Franz
  last_name: Hempel
- first_name: Zeeshan
  full_name: Amber, Zeeshan
  last_name: Amber
- first_name: Lukas M.
  full_name: Eng, Lukas M.
  last_name: Eng
- first_name: Michael
  full_name: Rüsing, Michael
  id: '22501'
  last_name: Rüsing
  orcid: 0000-0003-4682-4577
citation:
  ama: 'Lee CSJ, Canalias C, Buschbeck R, et al. Impact of ion exchange on vibrational
    modes in Rb-doped KTiOPO4: A Raman spectroscopy study on the interplay between
    ion exchange and polarization switching. <i>Physical Review B</i>. 2024;110(21).
    doi:<a href="https://doi.org/10.1103/physrevb.110.214115">10.1103/physrevb.110.214115</a>'
  apa: 'Lee, C. S. J., Canalias, C., Buschbeck, R., Koppitz, B., Hempel, F., Amber,
    Z., Eng, L. M., &#38; Rüsing, M. (2024). Impact of ion exchange on vibrational
    modes in Rb-doped KTiOPO4: A Raman spectroscopy study on the interplay between
    ion exchange and polarization switching. <i>Physical Review B</i>, <i>110</i>(21),
    Article 214115. <a href="https://doi.org/10.1103/physrevb.110.214115">https://doi.org/10.1103/physrevb.110.214115</a>'
  bibtex: '@article{Lee_Canalias_Buschbeck_Koppitz_Hempel_Amber_Eng_Rüsing_2024, title={Impact
    of ion exchange on vibrational modes in Rb-doped KTiOPO4: A Raman spectroscopy
    study on the interplay between ion exchange and polarization switching}, volume={110},
    DOI={<a href="https://doi.org/10.1103/physrevb.110.214115">10.1103/physrevb.110.214115</a>},
    number={21214115}, journal={Physical Review B}, publisher={American Physical Society
    (APS)}, author={Lee, Cherrie S. J. and Canalias, Carlota and Buschbeck, Robin
    and Koppitz, Boris and Hempel, Franz and Amber, Zeeshan and Eng, Lukas M. and
    Rüsing, Michael}, year={2024} }'
  chicago: 'Lee, Cherrie S. J., Carlota Canalias, Robin Buschbeck, Boris Koppitz,
    Franz Hempel, Zeeshan Amber, Lukas M. Eng, and Michael Rüsing. “Impact of Ion
    Exchange on Vibrational Modes in Rb-Doped KTiOPO4: A Raman Spectroscopy Study
    on the Interplay between Ion Exchange and Polarization Switching.” <i>Physical
    Review B</i> 110, no. 21 (2024). <a href="https://doi.org/10.1103/physrevb.110.214115">https://doi.org/10.1103/physrevb.110.214115</a>.'
  ieee: 'C. S. J. Lee <i>et al.</i>, “Impact of ion exchange on vibrational modes
    in Rb-doped KTiOPO4: A Raman spectroscopy study on the interplay between ion exchange
    and polarization switching,” <i>Physical Review B</i>, vol. 110, no. 21, Art.
    no. 214115, 2024, doi: <a href="https://doi.org/10.1103/physrevb.110.214115">10.1103/physrevb.110.214115</a>.'
  mla: 'Lee, Cherrie S. J., et al. “Impact of Ion Exchange on Vibrational Modes in
    Rb-Doped KTiOPO4: A Raman Spectroscopy Study on the Interplay between Ion Exchange
    and Polarization Switching.” <i>Physical Review B</i>, vol. 110, no. 21, 214115,
    American Physical Society (APS), 2024, doi:<a href="https://doi.org/10.1103/physrevb.110.214115">10.1103/physrevb.110.214115</a>.'
  short: C.S.J. Lee, C. Canalias, R. Buschbeck, B. Koppitz, F. Hempel, Z. Amber, L.M.
    Eng, M. Rüsing, Physical Review B 110 (2024).
date_created: 2025-04-02T16:14:44Z
date_updated: 2025-04-02T16:18:34Z
department:
- _id: '288'
- _id: '15'
- _id: '623'
doi: 10.1103/physrevb.110.214115
intvolume: '       110'
issue: '21'
language:
- iso: eng
publication: Physical Review B
publication_identifier:
  issn:
  - 2469-9950
  - 2469-9969
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Impact of ion exchange on vibrational modes in Rb-doped KTiOPO4: A Raman spectroscopy
  study on the interplay between ion exchange and polarization switching'
type: journal_article
user_id: '22501'
volume: 110
year: '2024'
...
---
_id: '59275'
abstract:
- lang: eng
  text: Studying and understanding many‐body interactions, particularly electron‐boson
    interactions, is essential for a deeper elucidation of fundamental physical phenomena
    and the development of novel material functionalities. Here, this aspect is explored
    in the weak itinerant ferromagnet LaCo2P2 by means of momentum‐resolved photoelectron
    spectroscopy (ARPES) and first‐principles calculations. The detailed ARPES patterns
    enable to unveil bulk and surface bands, spin splittings due to Rashba and exchange
    interactions, as well as the evolution of bands with temperature, which altogether
    creates a solid foundation for theoretical studies. The latter has allowed to
    establish the impact of electron‐boson interactions on the electronic structure,
    that are reflected in its strong renormalization driven by electron‐magnon interaction
    and the emergence of distinctive kinks of surface and bulk electron bands due
    to significant electron‐phonon coupling. Our results highlight the distinct impact
    of electron‐boson interactions on the electronic structure, particularly on the
    itinerant d states. Similar electronic states are observed in the isostructural
    iron pnictides, where electron‐boson interactions play a crucial role in the emergence
    of superconductivity. It is believed that further studies of material systems
    involving both magnetically active d‐ and f‐sublattices will reveal more advanced
    phenomena in the bulk and at distinct surfaces, driven by a combination of factors
    including Rashba and Kondo effects, exchange magnetism, and electron‐boson interactions.
author:
- first_name: D. Yu.
  full_name: Usachov, D. Yu.
  last_name: Usachov
- first_name: K.
  full_name: Ali, K.
  last_name: Ali
- first_name: G.
  full_name: Poelchen, G.
  last_name: Poelchen
- first_name: M.
  full_name: Mende, M.
  last_name: Mende
- first_name: S.
  full_name: Schulz, S.
  last_name: Schulz
- first_name: M.
  full_name: Peters, M.
  last_name: Peters
- first_name: K.
  full_name: Bokai, K.
  last_name: Bokai
- first_name: I. Yu.
  full_name: Sklyadneva, I. Yu.
  last_name: Sklyadneva
- first_name: V.
  full_name: Stolyarov, V.
  last_name: Stolyarov
- first_name: E. V.
  full_name: Chulkov, E. V.
  last_name: Chulkov
- first_name: K.
  full_name: Kliemt, K.
  last_name: Kliemt
- first_name: S.
  full_name: Paischer, S.
  last_name: Paischer
- first_name: P. A.
  full_name: Buczek, P. A.
  last_name: Buczek
- first_name: R.
  full_name: Heid, R.
  last_name: Heid
- first_name: F.
  full_name: Hempel, F.
  last_name: Hempel
- first_name: Michael
  full_name: Rüsing, Michael
  id: '22501'
  last_name: Rüsing
  orcid: 0000-0003-4682-4577
- first_name: A.
  full_name: Ernst, A.
  last_name: Ernst
- first_name: C.
  full_name: Krellner, C.
  last_name: Krellner
- first_name: S. V.
  full_name: Eremeev, S. V.
  last_name: Eremeev
- first_name: D. V.
  full_name: Vyalikh, D. V.
  last_name: Vyalikh
citation:
  ama: Usachov DYu, Ali K, Poelchen G, et al. Unveiling Electron‐Phonon and Electron‐Magnon
    Interactions in the Weak Itinerant Ferromagnet LaCo2P2. <i>Advanced Physics Research</i>.
    Published online 2024. doi:<a href="https://doi.org/10.1002/apxr.202400137">10.1002/apxr.202400137</a>
  apa: Usachov, D. Yu., Ali, K., Poelchen, G., Mende, M., Schulz, S., Peters, M.,
    Bokai, K., Sklyadneva, I. Yu., Stolyarov, V., Chulkov, E. V., Kliemt, K., Paischer,
    S., Buczek, P. A., Heid, R., Hempel, F., Rüsing, M., Ernst, A., Krellner, C.,
    Eremeev, S. V., &#38; Vyalikh, D. V. (2024). Unveiling Electron‐Phonon and Electron‐Magnon
    Interactions in the Weak Itinerant Ferromagnet LaCo2P2. <i>Advanced Physics Research</i>.
    <a href="https://doi.org/10.1002/apxr.202400137">https://doi.org/10.1002/apxr.202400137</a>
  bibtex: '@article{Usachov_Ali_Poelchen_Mende_Schulz_Peters_Bokai_Sklyadneva_Stolyarov_Chulkov_et
    al._2024, title={Unveiling Electron‐Phonon and Electron‐Magnon Interactions in
    the Weak Itinerant Ferromagnet LaCo2P2}, DOI={<a href="https://doi.org/10.1002/apxr.202400137">10.1002/apxr.202400137</a>},
    journal={Advanced Physics Research}, publisher={Wiley}, author={Usachov, D. Yu.
    and Ali, K. and Poelchen, G. and Mende, M. and Schulz, S. and Peters, M. and Bokai,
    K. and Sklyadneva, I. Yu. and Stolyarov, V. and Chulkov, E. V. and et al.}, year={2024}
    }'
  chicago: Usachov, D. Yu., K. Ali, G. Poelchen, M. Mende, S. Schulz, M. Peters, K.
    Bokai, et al. “Unveiling Electron‐Phonon and Electron‐Magnon Interactions in the
    Weak Itinerant Ferromagnet LaCo2P2.” <i>Advanced Physics Research</i>, 2024. <a
    href="https://doi.org/10.1002/apxr.202400137">https://doi.org/10.1002/apxr.202400137</a>.
  ieee: 'D. Yu. Usachov <i>et al.</i>, “Unveiling Electron‐Phonon and Electron‐Magnon
    Interactions in the Weak Itinerant Ferromagnet LaCo2P2,” <i>Advanced Physics Research</i>,
    2024, doi: <a href="https://doi.org/10.1002/apxr.202400137">10.1002/apxr.202400137</a>.'
  mla: Usachov, D. Yu., et al. “Unveiling Electron‐Phonon and Electron‐Magnon Interactions
    in the Weak Itinerant Ferromagnet LaCo2P2.” <i>Advanced Physics Research</i>,
    Wiley, 2024, doi:<a href="https://doi.org/10.1002/apxr.202400137">10.1002/apxr.202400137</a>.
  short: D.Yu. Usachov, K. Ali, G. Poelchen, M. Mende, S. Schulz, M. Peters, K. Bokai,
    I.Yu. Sklyadneva, V. Stolyarov, E.V. Chulkov, K. Kliemt, S. Paischer, P.A. Buczek,
    R. Heid, F. Hempel, M. Rüsing, A. Ernst, C. Krellner, S.V. Eremeev, D.V. Vyalikh,
    Advanced Physics Research (2024).
date_created: 2025-04-02T16:18:56Z
date_updated: 2025-04-02T16:20:41Z
department:
- _id: '288'
- _id: '623'
- _id: '15'
doi: 10.1002/apxr.202400137
language:
- iso: eng
publication: Advanced Physics Research
publication_identifier:
  issn:
  - 2751-1200
  - 2751-1200
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Unveiling Electron‐Phonon and Electron‐Magnon Interactions in the Weak Itinerant
  Ferromagnet LaCo2P2
type: journal_article
user_id: '22501'
year: '2024'
...
---
_id: '54967'
abstract:
- lang: eng
  text: '<jats:p>Ferroelectric domain wall conductivity (DWC) is an intriguing and
    promising functional property that can be elegantly controlled and steered through
    a variety of external stimuli such as electric and mechanical fields. Optical-field
    control, as a noninvasive and flexible tool, has rarely been applied so far, but
    it significantly expands the possibility for both tuning and probing DWC. On the
    one hand, as known from second-harmonic or Raman micro-spectroscopy, the optical
    approach provides information on DW distribution and inclination, while simultaneously
    probing the DW vibrational modes; on the other hand, photons might be applied
    to directly generate charge carriers, thereby acting as a functional and spectrally
    tunable probe to deduce the local absorption properties and bandgaps of conductive
    DWs. Here, we report on investigating the photo-induced DWC (PI-DWC) of three
    lithium niobate crystals, containing a very different number of DWs, namely: (A)
    none, (B) one, and (C) many conductive DWs. All three samples are inspected for
    their current–voltage behavior in darkness and for different illumination wavelengths
    swept from 500 nm down to 310 nm. All samples show their maximum PI-DWC at 310 nm;
    moreover, sample (C) reaches PI-DWCs of several microampere. Interestingly, a
    noticeable PI-DWC is also observed for sub-bandgap illumination, hinting toward
    the existence and decisive role of electronic in-gap states that contribute to
    the electronic charge transport along DWs. Finally, complementary conductive atomic
    force microscopy investigations under illumination proved that the PI-DWC indeed
    is confined to the DW area and does not originate from photo-induced bulk conductivity.</jats:p>'
article_type: original
author:
- first_name: L. L.
  full_name: Ding, L. L.
  last_name: Ding
- first_name: E.
  full_name: Beyreuther, E.
  last_name: Beyreuther
- first_name: B.
  full_name: Koppitz, B.
  last_name: Koppitz
- first_name: K.
  full_name: Kempf, K.
  last_name: Kempf
- first_name: J. H.
  full_name: Ren, J. H.
  last_name: Ren
- first_name: W. J.
  full_name: Chen, W. J.
  last_name: Chen
- first_name: Michael
  full_name: Rüsing, Michael
  id: '22501'
  last_name: Rüsing
  orcid: 0000-0003-4682-4577
- first_name: Y.
  full_name: Zheng, Y.
  last_name: Zheng
- first_name: L. M.
  full_name: Eng, L. M.
  last_name: Eng
citation:
  ama: Ding LL, Beyreuther E, Koppitz B, et al. Comparative study of photo-induced
    electronic transport along ferroelectric domain walls in lithium niobate single
    crystals. <i>Applied Physics Letters</i>. 2024;124(25). doi:<a href="https://doi.org/10.1063/5.0205877">10.1063/5.0205877</a>
  apa: Ding, L. L., Beyreuther, E., Koppitz, B., Kempf, K., Ren, J. H., Chen, W. J.,
    Rüsing, M., Zheng, Y., &#38; Eng, L. M. (2024). Comparative study of photo-induced
    electronic transport along ferroelectric domain walls in lithium niobate single
    crystals. <i>Applied Physics Letters</i>, <i>124</i>(25). <a href="https://doi.org/10.1063/5.0205877">https://doi.org/10.1063/5.0205877</a>
  bibtex: '@article{Ding_Beyreuther_Koppitz_Kempf_Ren_Chen_Rüsing_Zheng_Eng_2024,
    title={Comparative study of photo-induced electronic transport along ferroelectric
    domain walls in lithium niobate single crystals}, volume={124}, DOI={<a href="https://doi.org/10.1063/5.0205877">10.1063/5.0205877</a>},
    number={25}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Ding,
    L. L. and Beyreuther, E. and Koppitz, B. and Kempf, K. and Ren, J. H. and Chen,
    W. J. and Rüsing, Michael and Zheng, Y. and Eng, L. M.}, year={2024} }'
  chicago: Ding, L. L., E. Beyreuther, B. Koppitz, K. Kempf, J. H. Ren, W. J. Chen,
    Michael Rüsing, Y. Zheng, and L. M. Eng. “Comparative Study of Photo-Induced Electronic
    Transport along Ferroelectric Domain Walls in Lithium Niobate Single Crystals.”
    <i>Applied Physics Letters</i> 124, no. 25 (2024). <a href="https://doi.org/10.1063/5.0205877">https://doi.org/10.1063/5.0205877</a>.
  ieee: 'L. L. Ding <i>et al.</i>, “Comparative study of photo-induced electronic
    transport along ferroelectric domain walls in lithium niobate single crystals,”
    <i>Applied Physics Letters</i>, vol. 124, no. 25, 2024, doi: <a href="https://doi.org/10.1063/5.0205877">10.1063/5.0205877</a>.'
  mla: Ding, L. L., et al. “Comparative Study of Photo-Induced Electronic Transport
    along Ferroelectric Domain Walls in Lithium Niobate Single Crystals.” <i>Applied
    Physics Letters</i>, vol. 124, no. 25, AIP Publishing, 2024, doi:<a href="https://doi.org/10.1063/5.0205877">10.1063/5.0205877</a>.
  short: L.L. Ding, E. Beyreuther, B. Koppitz, K. Kempf, J.H. Ren, W.J. Chen, M. Rüsing,
    Y. Zheng, L.M. Eng, Applied Physics Letters 124 (2024).
date_created: 2024-07-01T21:03:23Z
date_updated: 2025-04-03T12:35:17Z
department:
- _id: '15'
- _id: '169'
- _id: '623'
doi: 10.1063/5.0205877
intvolume: '       124'
issue: '25'
language:
- iso: eng
main_file_link:
- url: https://doi.org/10.1063/5.0205877
publication: Applied Physics Letters
publication_identifier:
  issn:
  - 0003-6951
  - 1077-3118
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
status: public
title: Comparative study of photo-induced electronic transport along ferroelectric
  domain walls in lithium niobate single crystals
type: journal_article
user_id: '22501'
volume: 124
year: '2024'
...
---
_id: '54966'
abstract:
- lang: eng
  text: Piezoresponse force microscopy (PFM) is one of the most widespread methods
    for investigating and visualizing ferroelectric domain structures down to the
    nanometer length scale. PFM makes use of the direct coupling of the piezoelectric
    response to the crystal lattice, and hence, it is most often applied to spatially
    map the three-dimensional (3D) near-surface domain distribution of any polar or
    ferroic sample. Nonetheless, since most samples investigated by PFM are at least
    semiconducting or fully insulating, the electric ac field emerging from the conductive
    scanning force microscopy (SFM) tip penetrates the sample and, hence, may also
    couple to polar features that are deeply buried into the bulk of the sample under
    investigation. Thus, in the work presented here, we experimentally and theoretically
    explore the contrast and depth resolution capabilities of PFM, by analyzing the
    dependence of several key parameters. These key parameters include the depth of
    the buried feature, i.e., here a domain wall (DW), as well as PFM-relevant technical
    parameters such as the tip radius, the PFM drive voltage and frequency, and the
    signal-to-noise ratio. The theoretical predictions are experimentally verified
    using x-cut periodically poled lithium niobate single crystals that are specially
    prepared into wedge-shaped samples, in order to allow the buried feature, here
    the DW, to be “positioned” at any depth into the bulk. This inspection essentially
    contributes to the fundamental understanding in PFM contrast analysis and to the
    reconstruction of 3D domain structures down to a 1 μm-penetration depth into the
    sample.
article_type: original
author:
- first_name: Matthias
  full_name: Roeper, Matthias
  last_name: Roeper
- first_name: Samuel D.
  full_name: Seddon, Samuel D.
  last_name: Seddon
- first_name: Zeeshan H.
  full_name: Amber, Zeeshan H.
  last_name: Amber
- first_name: Michael
  full_name: Rüsing, Michael
  id: '22501'
  last_name: Rüsing
  orcid: 0000-0003-4682-4577
- first_name: Lukas M.
  full_name: Eng, Lukas M.
  last_name: Eng
citation:
  ama: Roeper M, Seddon SD, Amber ZH, Rüsing M, Eng LM. Depth resolution in piezoresponse
    force microscopy. <i>Journal of Applied Physics</i>. 2024;135(22). doi:<a href="https://doi.org/10.1063/5.0206784">10.1063/5.0206784</a>
  apa: Roeper, M., Seddon, S. D., Amber, Z. H., Rüsing, M., &#38; Eng, L. M. (2024).
    Depth resolution in piezoresponse force microscopy. <i>Journal of Applied Physics</i>,
    <i>135</i>(22). <a href="https://doi.org/10.1063/5.0206784">https://doi.org/10.1063/5.0206784</a>
  bibtex: '@article{Roeper_Seddon_Amber_Rüsing_Eng_2024, title={Depth resolution in
    piezoresponse force microscopy}, volume={135}, DOI={<a href="https://doi.org/10.1063/5.0206784">10.1063/5.0206784</a>},
    number={22}, journal={Journal of Applied Physics}, publisher={AIP Publishing},
    author={Roeper, Matthias and Seddon, Samuel D. and Amber, Zeeshan H. and Rüsing,
    Michael and Eng, Lukas M.}, year={2024} }'
  chicago: Roeper, Matthias, Samuel D. Seddon, Zeeshan H. Amber, Michael Rüsing, and
    Lukas M. Eng. “Depth Resolution in Piezoresponse Force Microscopy.” <i>Journal
    of Applied Physics</i> 135, no. 22 (2024). <a href="https://doi.org/10.1063/5.0206784">https://doi.org/10.1063/5.0206784</a>.
  ieee: 'M. Roeper, S. D. Seddon, Z. H. Amber, M. Rüsing, and L. M. Eng, “Depth resolution
    in piezoresponse force microscopy,” <i>Journal of Applied Physics</i>, vol. 135,
    no. 22, 2024, doi: <a href="https://doi.org/10.1063/5.0206784">10.1063/5.0206784</a>.'
  mla: Roeper, Matthias, et al. “Depth Resolution in Piezoresponse Force Microscopy.”
    <i>Journal of Applied Physics</i>, vol. 135, no. 22, AIP Publishing, 2024, doi:<a
    href="https://doi.org/10.1063/5.0206784">10.1063/5.0206784</a>.
  short: M. Roeper, S.D. Seddon, Z.H. Amber, M. Rüsing, L.M. Eng, Journal of Applied
    Physics 135 (2024).
date_created: 2024-07-01T21:00:43Z
date_updated: 2025-04-03T12:35:34Z
department:
- _id: '15'
- _id: '169'
- _id: '288'
- _id: '623'
doi: 10.1063/5.0206784
intvolume: '       135'
issue: '22'
keyword:
- Ferroelectrics
- lithium niobate
- piezoresponse force microscopy
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1063/5.0206784
oa: '1'
publication: Journal of Applied Physics
publication_identifier:
  issn:
  - 0021-8979
  - 1089-7550
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
status: public
title: Depth resolution in piezoresponse force microscopy
type: journal_article
user_id: '22501'
volume: 135
year: '2024'
...
---
_id: '59259'
author:
- first_name: Tobias
  full_name: Schwabe, Tobias
  id: '39217'
  last_name: Schwabe
- first_name: Michael
  full_name: Rüsing, Michael
  id: '22501'
  last_name: Rüsing
  orcid: 0000-0003-4682-4577
- first_name: Niels
  full_name: Staal, Niels
  last_name: Staal
- first_name: Max
  full_name: Schwengelbeck, Max
  last_name: Schwengelbeck
- first_name: Laura
  full_name: Bollmers, Laura
  id: '61375'
  last_name: Bollmers
- first_name: Laura
  full_name: Padberg, Laura
  id: '40300'
  last_name: Padberg
- first_name: Christof
  full_name: Eigner, Christof
  id: '13244'
  last_name: Eigner
  orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
  orcid: '0000-0002-5950-6618 '
citation:
  ama: Schwabe T, Rüsing M, Staal N, et al. <i>Quantum Photonic Systems in CMOS Compatible
    Silicon Nitride Technology </i>. Zenodo; 2024. doi:<a href="https://doi.org/10.5281/zenodo.15124929">10.5281/zenodo.15124929</a>
  apa: Schwabe, T., Rüsing, M., Staal, N., Schwengelbeck, M., Bollmers, L., Padberg,
    L., Eigner, C., Silberhorn, C., &#38; Scheytt, J. C. (2024). <i>Quantum photonic
    systems in CMOS compatible silicon nitride technology </i>. Zenodo. <a href="https://doi.org/10.5281/zenodo.15124929">https://doi.org/10.5281/zenodo.15124929</a>
  bibtex: '@book{Schwabe_Rüsing_Staal_Schwengelbeck_Bollmers_Padberg_Eigner_Silberhorn_Scheytt_2024,
    title={Quantum photonic systems in CMOS compatible silicon nitride technology
    }, DOI={<a href="https://doi.org/10.5281/zenodo.15124929">10.5281/zenodo.15124929</a>},
    publisher={Zenodo}, author={Schwabe, Tobias and Rüsing, Michael and Staal, Niels
    and Schwengelbeck, Max and Bollmers, Laura and Padberg, Laura and Eigner, Christof
    and Silberhorn, Christine and Scheytt, J. Christoph}, year={2024} }'
  chicago: Schwabe, Tobias, Michael Rüsing, Niels Staal, Max Schwengelbeck, Laura
    Bollmers, Laura Padberg, Christof Eigner, Christine Silberhorn, and J. Christoph
    Scheytt. <i>Quantum Photonic Systems in CMOS Compatible Silicon Nitride Technology
    </i>. Zenodo, 2024. <a href="https://doi.org/10.5281/zenodo.15124929">https://doi.org/10.5281/zenodo.15124929</a>.
  ieee: T. Schwabe <i>et al.</i>, <i>Quantum photonic systems in CMOS compatible silicon
    nitride technology </i>. Zenodo, 2024.
  mla: Schwabe, Tobias, et al. <i>Quantum Photonic Systems in CMOS Compatible Silicon
    Nitride Technology </i>. Zenodo, 2024, doi:<a href="https://doi.org/10.5281/zenodo.15124929">10.5281/zenodo.15124929</a>.
  short: T. Schwabe, M. Rüsing, N. Staal, M. Schwengelbeck, L. Bollmers, L. Padberg,
    C. Eigner, C. Silberhorn, J.C. Scheytt, Quantum Photonic Systems in CMOS Compatible
    Silicon Nitride Technology , Zenodo, 2024.
date_created: 2025-04-02T11:24:23Z
date_updated: 2025-04-03T12:34:56Z
department:
- _id: '288'
- _id: '15'
- _id: '623'
doi: 10.5281/zenodo.15124929
language:
- iso: eng
publisher: Zenodo
status: public
title: 'Quantum photonic systems in CMOS compatible silicon nitride technology '
type: misc
user_id: '22501'
year: '2024'
...
---
_id: '61251'
abstract:
- lang: eng
  text: <jats:p>We theoretically investigate strategies for the deterministic creation
    of trains of time-bin entangled photons using an individual quantum emitter described
    by a Λ-type electronic system. We explicitly demonstrate the theoretical generation
    of linear cluster states with substantial numbers of entangled photonic qubits
    in full microscopic numerical simulations. The underlying scheme is based on the
    manipulation of ground state coherences through precise optical driving. One important
    finding is that the most easily accessible quality metrics, the achievable rotation
    fidelities, fall short in assessing the actual quantum correlations of the emitted
    photons in the face of losses. To address this, we explicitly calculate stabilizer
    generator expectation values as a superior gauge for the quantum properties of
    the generated many-photon state. With widespread applicability in other emitter
    and excitation–emission schemes also, our work lays the conceptual foundations
    for an in-depth practical analysis of time-bin entanglement based on full numerical
    simulations with predictive capabilities for realistic systems and setups, including
    losses and imperfections. The specific results shown in the present work illustrate
    that with controlled minimization of losses and realistic system parameters for
    quantum-dot type systems, useful linear cluster states of significant lengths
    can be generated in the calculations, discussing the possibility of scalability
    for quantum information processing endeavors.</jats:p>
article_number: '036110'
author:
- first_name: David
  full_name: Bauch, David
  last_name: Bauch
- first_name: Nikolas
  full_name: Köcher, Nikolas
  id: '79191'
  last_name: Köcher
- first_name: Nils
  full_name: Heinisch, Nils
  id: '90283'
  last_name: Heinisch
  orcid: 0009-0006-0984-2097
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: Bauch D, Köcher N, Heinisch N, Schumacher S. Time-bin entanglement in the deterministic
    generation of linear photonic cluster states. <i>APL Quantum</i>. 2024;1(3). doi:<a
    href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>
  apa: Bauch, D., Köcher, N., Heinisch, N., &#38; Schumacher, S. (2024). Time-bin
    entanglement in the deterministic generation of linear photonic cluster states.
    <i>APL Quantum</i>, <i>1</i>(3), Article 036110. <a href="https://doi.org/10.1063/5.0214197">https://doi.org/10.1063/5.0214197</a>
  bibtex: '@article{Bauch_Köcher_Heinisch_Schumacher_2024, title={Time-bin entanglement
    in the deterministic generation of linear photonic cluster states}, volume={1},
    DOI={<a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>}, number={3036110},
    journal={APL Quantum}, publisher={AIP Publishing}, author={Bauch, David and Köcher,
    Nikolas and Heinisch, Nils and Schumacher, Stefan}, year={2024} }'
  chicago: Bauch, David, Nikolas Köcher, Nils Heinisch, and Stefan Schumacher. “Time-Bin
    Entanglement in the Deterministic Generation of Linear Photonic Cluster States.”
    <i>APL Quantum</i> 1, no. 3 (2024). <a href="https://doi.org/10.1063/5.0214197">https://doi.org/10.1063/5.0214197</a>.
  ieee: 'D. Bauch, N. Köcher, N. Heinisch, and S. Schumacher, “Time-bin entanglement
    in the deterministic generation of linear photonic cluster states,” <i>APL Quantum</i>,
    vol. 1, no. 3, Art. no. 036110, 2024, doi: <a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>.'
  mla: Bauch, David, et al. “Time-Bin Entanglement in the Deterministic Generation
    of Linear Photonic Cluster States.” <i>APL Quantum</i>, vol. 1, no. 3, 036110,
    AIP Publishing, 2024, doi:<a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>.
  short: D. Bauch, N. Köcher, N. Heinisch, S. Schumacher, APL Quantum 1 (2024).
date_created: 2025-09-12T11:08:59Z
date_updated: 2025-09-12T11:11:32Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '35'
- _id: '230'
- _id: '27'
- _id: '429'
- _id: '623'
doi: 10.1063/5.0214197
intvolume: '         1'
issue: '3'
language:
- iso: eng
project:
- _id: '53'
  name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
    zu funktionellen Strukturen'
- _id: '56'
  name: TRR 142 - Project Area C
- _id: '173'
  name: 'TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
    bei Telekom Wellenlängen'
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '266'
  name: 'PhoQC: Photonisches Quantencomputing'
publication: APL Quantum
publication_identifier:
  issn:
  - 2835-0103
publication_status: published
publisher: AIP Publishing
status: public
title: Time-bin entanglement in the deterministic generation of linear photonic cluster
  states
type: journal_article
user_id: '16199'
volume: 1
year: '2024'
...
