---
_id: '4122'
abstract:
- lang: eng
text: 'We experimentally and theoretically investigate injection currents generated
by femtosecond single-color circularly-polarized laser pulses in (110)-oriented
GaAs quantum wells. The current measurements are performed by detecting the emitted
Terahertz radiation at room temperature. The microscopic theory is based on a
14 x 14 k • p band-structure calculation in combination with the multi-subband
semiconductor Bloch equations. For symmetric GaAs quantum wells grown in (110)
direction, an oscillatory dependence of the injection currents on the exciting
photon energy is obtained. The results of the microscopic theory are in good agreement
with the measurements. '
article_number: 79370U
author:
- first_name: H. T.
full_name: Duc, H. T.
last_name: Duc
- first_name: M.
full_name: Pochwala, M.
last_name: Pochwala
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: S.
full_name: Priyadarshi, S.
last_name: Priyadarshi
- first_name: A. M.
full_name: Racu, A. M.
last_name: Racu
- first_name: K.
full_name: Pierz, K.
last_name: Pierz
- first_name: U.
full_name: Siegner, U.
last_name: Siegner
- first_name: M.
full_name: Bieler, M.
last_name: Bieler
citation:
ama: 'Duc HT, Pochwala M, Förstner J, et al. Injection currents in (110)-oriented
GaAs/AlGaAs quantum wells: recent progress in theory and experiment. In: Tsen
K-T, Song J-J, Betz M, Elezzabi AY, eds. Ultrafast Phenomena in Semiconductors
and Nanostructure Materials XV. Vol 7937. SPIE Proceedings. SPIE; 2011. doi:10.1117/12.876972'
apa: 'Duc, H. T., Pochwala, M., Förstner, J., Meier, T., Priyadarshi, S., Racu,
A. M., Pierz, K., Siegner, U., & Bieler, M. (2011). Injection currents in
(110)-oriented GaAs/AlGaAs quantum wells: recent progress in theory and experiment.
In K.-T. Tsen, J.-J. Song, M. Betz, & A. Y. Elezzabi (Eds.), Ultrafast
Phenomena in Semiconductors and Nanostructure Materials XV (No. 79370U; Vol.
7937). SPIE. https://doi.org/10.1117/12.876972'
bibtex: '@inproceedings{Duc_Pochwala_Förstner_Meier_Priyadarshi_Racu_Pierz_Siegner_Bieler_2011,
series={SPIE Proceedings}, title={Injection currents in (110)-oriented GaAs/AlGaAs
quantum wells: recent progress in theory and experiment}, volume={7937}, DOI={10.1117/12.876972}, number={79370U},
booktitle={Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV},
publisher={SPIE}, author={Duc, H. T. and Pochwala, M. and Förstner, Jens and Meier,
Torsten and Priyadarshi, S. and Racu, A. M. and Pierz, K. and Siegner, U. and
Bieler, M.}, editor={Tsen, Kong-Thon and Song, Jin-Joo and Betz, Markus and Elezzabi,
Abdulhakem Y.}, year={2011}, collection={SPIE Proceedings} }'
chicago: 'Duc, H. T., M. Pochwala, Jens Förstner, Torsten Meier, S. Priyadarshi,
A. M. Racu, K. Pierz, U. Siegner, and M. Bieler. “Injection Currents in (110)-Oriented
GaAs/AlGaAs Quantum Wells: Recent Progress in Theory and Experiment.” In Ultrafast
Phenomena in Semiconductors and Nanostructure Materials XV, edited by Kong-Thon
Tsen, Jin-Joo Song, Markus Betz, and Abdulhakem Y. Elezzabi, Vol. 7937. SPIE Proceedings.
SPIE, 2011. https://doi.org/10.1117/12.876972.'
ieee: 'H. T. Duc et al., “Injection currents in (110)-oriented GaAs/AlGaAs
quantum wells: recent progress in theory and experiment,” in Ultrafast Phenomena
in Semiconductors and Nanostructure Materials XV, 2011, vol. 7937, doi: 10.1117/12.876972.'
mla: 'Duc, H. T., et al. “Injection Currents in (110)-Oriented GaAs/AlGaAs Quantum
Wells: Recent Progress in Theory and Experiment.” Ultrafast Phenomena in Semiconductors
and Nanostructure Materials XV, edited by Kong-Thon Tsen et al., vol. 7937,
79370U, SPIE, 2011, doi:10.1117/12.876972.'
short: 'H.T. Duc, M. Pochwala, J. Förstner, T. Meier, S. Priyadarshi, A.M. Racu,
K. Pierz, U. Siegner, M. Bieler, in: K.-T. Tsen, J.-J. Song, M. Betz, A.Y. Elezzabi
(Eds.), Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV,
SPIE, 2011.'
date_created: 2018-08-27T09:32:36Z
date_updated: 2025-12-16T11:36:39Z
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1117/12.876972
editor:
- first_name: Kong-Thon
full_name: Tsen, Kong-Thon
last_name: Tsen
- first_name: Jin-Joo
full_name: Song, Jin-Joo
last_name: Song
- first_name: Markus
full_name: Betz, Markus
last_name: Betz
- first_name: Abdulhakem Y.
full_name: Elezzabi, Abdulhakem Y.
last_name: Elezzabi
intvolume: ' 7937'
keyword:
- tet_topic_qw
language:
- iso: eng
publication: Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV
publication_status: published
publisher: SPIE
series_title: SPIE Proceedings
status: public
title: 'Injection currents in (110)-oriented GaAs/AlGaAs quantum wells: recent progress
in theory and experiment'
type: conference
user_id: '16199'
volume: 7937
year: '2011'
...
---
_id: '4046'
abstract:
- lang: eng
text: "We demonstrate by spin quantum beat spectroscopy that in undoped symmetric
(110)-oriented GaAs/AlGaAs\r\nsingle quantum wells, even a symmetric spatial envelope
wave function gives rise to an asymmetric in-plane\r\nelectron Land´e g-factor.
The anisotropy is neither a direct consequence of the asymmetric in-plane Dresselhaus\r\nsplitting
nor a direct consequence of the asymmetric Zeeman splitting of the hole bands,
but rather it is a pure\r\nhigher-order effect that exists as well for diamond-type
lattices. The measurements for various well widths are\r\nvery well described
within 14 × 14 band k·p theory and illustrate that the electron spin is an excellent
meter\r\nvariable for mapping out the internal—otherwise hidden—symmetries in
two-dimensional systems. Fourth-order\r\nperturbation theory yields an analytical
expression for the strength of the g-factor anisotropy, providing a\r\nqualitative
understanding of the observed effects."
article_type: original
author:
- first_name: J.
full_name: Hübner, J.
last_name: Hübner
- first_name: S.
full_name: Kunz, S.
last_name: Kunz
- first_name: S.
full_name: Oertel, S.
last_name: Oertel
- first_name: D.
full_name: Schuh, D.
last_name: Schuh
- first_name: M.
full_name: Pochwała, M.
last_name: Pochwała
- first_name: H. T.
full_name: Duc, H. T.
last_name: Duc
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: M.
full_name: Oestreich, M.
last_name: Oestreich
citation:
ama: Hübner J, Kunz S, Oertel S, et al. Electron g-factor anisotropy in symmetric
(110)-oriented GaAs quantum wells. Physical Review B. 2011;84(4):041301(R).
doi:10.1103/physrevb.84.041301
apa: Hübner, J., Kunz, S., Oertel, S., Schuh, D., Pochwała, M., Duc, H. T., Förstner,
J., Meier, T., & Oestreich, M. (2011). Electron g-factor anisotropy in symmetric
(110)-oriented GaAs quantum wells. Physical Review B, 84(4), 041301(R).
https://doi.org/10.1103/physrevb.84.041301
bibtex: '@article{Hübner_Kunz_Oertel_Schuh_Pochwała_Duc_Förstner_Meier_Oestreich_2011,
title={Electron g-factor anisotropy in symmetric (110)-oriented GaAs quantum wells},
volume={84}, DOI={10.1103/physrevb.84.041301},
number={4}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Hübner, J. and Kunz, S. and Oertel, S. and Schuh, D. and Pochwała,
M. and Duc, H. T. and Förstner, Jens and Meier, Torsten and Oestreich, M.}, year={2011},
pages={041301(R)} }'
chicago: 'Hübner, J., S. Kunz, S. Oertel, D. Schuh, M. Pochwała, H. T. Duc, Jens
Förstner, Torsten Meier, and M. Oestreich. “Electron G-Factor Anisotropy in Symmetric
(110)-Oriented GaAs Quantum Wells.” Physical Review B 84, no. 4 (2011):
041301(R). https://doi.org/10.1103/physrevb.84.041301.'
ieee: 'J. Hübner et al., “Electron g-factor anisotropy in symmetric (110)-oriented
GaAs quantum wells,” Physical Review B, vol. 84, no. 4, p. 041301(R), 2011,
doi: 10.1103/physrevb.84.041301.'
mla: Hübner, J., et al. “Electron G-Factor Anisotropy in Symmetric (110)-Oriented
GaAs Quantum Wells.” Physical Review B, vol. 84, no. 4, American Physical
Society (APS), 2011, p. 041301(R), doi:10.1103/physrevb.84.041301.
short: J. Hübner, S. Kunz, S. Oertel, D. Schuh, M. Pochwała, H.T. Duc, J. Förstner,
T. Meier, M. Oestreich, Physical Review B 84 (2011) 041301(R).
date_created: 2018-08-22T10:20:23Z
date_updated: 2025-12-16T16:19:20Z
ddc:
- '530'
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1103/physrevb.84.041301
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-22T10:22:40Z
date_updated: 2018-09-04T19:28:55Z
file_id: '4047'
file_name: 2011 Hübner,Kunz,Örtel,Schuh,Pochwala,Duc,Förstner,Meier,Östreich_Electron
g -factor anisotropy in symmetric (110)-oriented GaAs quantum wells.pdf
file_size: 339595
relation: main_file
file_date_updated: 2018-09-04T19:28:55Z
has_accepted_license: '1'
intvolume: ' 84'
issue: '4'
keyword:
- tet_topic_qw
language:
- iso: eng
oa: '1'
page: 041301(R)
publication: Physical Review B
publication_identifier:
issn:
- 1098-0121
- 1550-235X
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Electron g-factor anisotropy in symmetric (110)-oriented GaAs quantum wells
type: journal_article
urn: '40467'
user_id: '16199'
volume: 84
year: '2011'
...
---
_id: '43202'
abstract:
- lang: eng
text: For numerous applications, the computation and provision of exact derivative
information plays an important role for optimizing the considered system. This
paper introduces the technique of algorithmic differentiation, a method to compute
derivatives of arbitrary order within working precision. This derivative information
will be combined with a calculus-based optimization algorithm to optimize a non-trivially
shaped laser pulse which coherently steers the electron dynamics in a semiconductor
quantum wire. Numerical results illustrating the cost for the derivative computation
and the optimization process are presented and discussed.
author:
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Matthias
full_name: Reichelt, Matthias
id: '138'
last_name: Reichelt
- first_name: A.
full_name: Walther, A.
last_name: Walther
citation:
ama: Meier T, Reichelt M, Walther A. Calculus-based optimization of the electron
dynamics in nanostructures. Photonics and Nanostructures - Fundamentals and
Applications. 2011;9(4):328-336. doi:10.1016/j.photonics.2011.03.006
apa: Meier, T., Reichelt, M., & Walther, A. (2011). Calculus-based optimization
of the electron dynamics in nanostructures. Photonics and Nanostructures -
Fundamentals and Applications, 9(4), 328–336. https://doi.org/10.1016/j.photonics.2011.03.006
bibtex: '@article{Meier_Reichelt_Walther_2011, title={Calculus-based optimization
of the electron dynamics in nanostructures}, volume={9}, DOI={10.1016/j.photonics.2011.03.006},
number={4}, journal={Photonics and Nanostructures - Fundamentals and Applications},
publisher={Elsevier}, author={Meier, Torsten and Reichelt, Matthias and Walther,
A.}, year={2011}, pages={328–336} }'
chicago: 'Meier, Torsten, Matthias Reichelt, and A. Walther. “Calculus-Based Optimization
of the Electron Dynamics in Nanostructures.” Photonics and Nanostructures -
Fundamentals and Applications 9, no. 4 (2011): 328–36. https://doi.org/10.1016/j.photonics.2011.03.006.'
ieee: 'T. Meier, M. Reichelt, and A. Walther, “Calculus-based optimization of the
electron dynamics in nanostructures,” Photonics and Nanostructures - Fundamentals
and Applications, vol. 9, no. 4, pp. 328–336, 2011, doi: 10.1016/j.photonics.2011.03.006.'
mla: Meier, Torsten, et al. “Calculus-Based Optimization of the Electron Dynamics
in Nanostructures.” Photonics and Nanostructures - Fundamentals and Applications,
vol. 9, no. 4, Elsevier, 2011, pp. 328–36, doi:10.1016/j.photonics.2011.03.006.
short: T. Meier, M. Reichelt, A. Walther, Photonics and Nanostructures - Fundamentals
and Applications 9 (2011) 328–336.
date_created: 2023-03-29T21:25:40Z
date_updated: 2025-12-16T16:49:08Z
department:
- _id: '293'
- _id: '35'
- _id: '15'
- _id: '170'
- _id: '230'
doi: 10.1016/j.photonics.2011.03.006
intvolume: ' 9'
issue: '4'
language:
- iso: eng
page: 328-336
publication: Photonics and Nanostructures - Fundamentals and Applications
publication_status: published
publisher: Elsevier
status: public
title: Calculus-based optimization of the electron dynamics in nanostructures
type: journal_article
user_id: '16199'
volume: 9
year: '2011'
...
---
_id: '41965'
citation:
ama: Brinkmann A, Burrichter R, Decker C, eds. Lernprozesse professionell begleiten.
Beiträge des Paderborner Grundschultages 2009 zu Diagnose und Förderung. Vol
16. LiT Verlag; 2011.
apa: Brinkmann, A., Burrichter, R., & Decker, C. (Eds.). (2011). Lernprozesse
professionell begleiten. Beiträge des Paderborner Grundschultages 2009 zu Diagnose
und Förderung (Vol. 16). LiT Verlag.
bibtex: '@book{Brinkmann_Burrichter_Decker_2011, series={Paderborner Beiträge zur
Unterrichtsforschung und Lehrerbildung}, title={Lernprozesse professionell begleiten.
Beiträge des Paderborner Grundschultages 2009 zu Diagnose und Förderung}, volume={16},
publisher={LiT Verlag}, year={2011}, collection={Paderborner Beiträge zur Unterrichtsforschung
und Lehrerbildung} }'
chicago: Brinkmann, Annette, Rita Burrichter, and Claudia Decker, eds. Lernprozesse
professionell begleiten. Beiträge des Paderborner Grundschultages 2009 zu Diagnose
und Förderung. Vol. 16. Paderborner Beiträge zur Unterrichtsforschung und
Lehrerbildung. LiT Verlag, 2011.
ieee: A. Brinkmann, R. Burrichter, and C. Decker, Eds., Lernprozesse professionell
begleiten. Beiträge des Paderborner Grundschultages 2009 zu Diagnose und Förderung,
vol. 16. LiT Verlag, 2011.
mla: Brinkmann, Annette, et al., editors. Lernprozesse professionell begleiten.
Beiträge des Paderborner Grundschultages 2009 zu Diagnose und Förderung. LiT
Verlag, 2011.
short: A. Brinkmann, R. Burrichter, C. Decker, eds., Lernprozesse professionell
begleiten. Beiträge des Paderborner Grundschultages 2009 zu Diagnose und Förderung,
LiT Verlag, 2011.
date_created: 2023-02-10T12:40:39Z
date_updated: 2026-03-19T09:47:06Z
department:
- _id: '33'
editor:
- first_name: Annette
full_name: Brinkmann, Annette
last_name: Brinkmann
- first_name: Rita
full_name: Burrichter, Rita
id: '42'
last_name: Burrichter
- first_name: Claudia
full_name: Decker, Claudia
id: '31046'
last_name: Decker
intvolume: ' 16'
language:
- iso: ger
publication_status: published
publisher: LiT Verlag
series_title: Paderborner Beiträge zur Unterrichtsforschung und Lehrerbildung
status: public
title: Lernprozesse professionell begleiten. Beiträge des Paderborner Grundschultages
2009 zu Diagnose und Förderung
type: book_editor
user_id: '31046'
volume: 16
year: '2011'
...
---
_id: '7993'
author:
- first_name: Karoline A.
full_name: Piegdon, Karoline A.
last_name: Piegdon
- first_name: Matthias
full_name: Offer, Matthias
last_name: Offer
- first_name: Axel
full_name: Lorke, Axel
last_name: Lorke
- first_name: Martin
full_name: Urbanski, Martin
last_name: Urbanski
- first_name: Andreas
full_name: Hoischen, Andreas
last_name: Hoischen
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
- first_name: Stefan
full_name: Declair, Stefan
last_name: Declair
- first_name: Jens
full_name: Förstner, Jens
last_name: Förstner
- first_name: Torsten
full_name: Meier, Torsten
last_name: Meier
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Andreas D.
full_name: Wieck, Andreas D.
last_name: Wieck
- first_name: Cedrik
full_name: Meier, Cedrik
last_name: Meier
citation:
ama: 'Piegdon KA, Offer M, Lorke A, et al. Self-assembled quantum dots in a liquid-crystal-tunable
microdisk resonator. Physica E: Low-dimensional Systems and Nanostructures.
2010;42(10):2552-2555. doi:10.1016/j.physe.2009.12.051'
apa: 'Piegdon, K. A., Offer, M., Lorke, A., Urbanski, M., Hoischen, A., Kitzerow,
H.-S., Declair, S., Förstner, J., Meier, T., Reuter, D., Wieck, A. D., & Meier,
C. (2010). Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator.
Physica E: Low-Dimensional Systems and Nanostructures, 42(10), 2552–2555.
https://doi.org/10.1016/j.physe.2009.12.051'
bibtex: '@article{Piegdon_Offer_Lorke_Urbanski_Hoischen_Kitzerow_Declair_Förstner_Meier_Reuter_et
al._2010, title={Self-assembled quantum dots in a liquid-crystal-tunable microdisk
resonator}, volume={42}, DOI={10.1016/j.physe.2009.12.051},
number={10}, journal={Physica E: Low-dimensional Systems and Nanostructures},
publisher={Elsevier BV}, author={Piegdon, Karoline A. and Offer, Matthias and
Lorke, Axel and Urbanski, Martin and Hoischen, Andreas and Kitzerow, Heinz-Siegfried
and Declair, Stefan and Förstner, Jens and Meier, Torsten and Reuter, Dirk and
et al.}, year={2010}, pages={2552–2555} }'
chicago: 'Piegdon, Karoline A., Matthias Offer, Axel Lorke, Martin Urbanski, Andreas
Hoischen, Heinz-Siegfried Kitzerow, Stefan Declair, et al. “Self-Assembled Quantum
Dots in a Liquid-Crystal-Tunable Microdisk Resonator.” Physica E: Low-Dimensional
Systems and Nanostructures 42, no. 10 (2010): 2552–55. https://doi.org/10.1016/j.physe.2009.12.051.'
ieee: 'K. A. Piegdon et al., “Self-assembled quantum dots in a liquid-crystal-tunable
microdisk resonator,” Physica E: Low-dimensional Systems and Nanostructures,
vol. 42, no. 10, pp. 2552–2555, 2010, doi: 10.1016/j.physe.2009.12.051.'
mla: 'Piegdon, Karoline A., et al. “Self-Assembled Quantum Dots in a Liquid-Crystal-Tunable
Microdisk Resonator.” Physica E: Low-Dimensional Systems and Nanostructures,
vol. 42, no. 10, Elsevier BV, 2010, pp. 2552–55, doi:10.1016/j.physe.2009.12.051.'
short: 'K.A. Piegdon, M. Offer, A. Lorke, M. Urbanski, A. Hoischen, H.-S. Kitzerow,
S. Declair, J. Förstner, T. Meier, D. Reuter, A.D. Wieck, C. Meier, Physica E:
Low-Dimensional Systems and Nanostructures 42 (2010) 2552–2555.'
date_created: 2019-02-21T14:43:30Z
date_updated: 2023-01-10T13:59:58Z
department:
- _id: '15'
- _id: '230'
- _id: '313'
doi: 10.1016/j.physe.2009.12.051
intvolume: ' 42'
issue: '10'
language:
- iso: eng
page: 2552-2555
publication: 'Physica E: Low-dimensional Systems and Nanostructures'
publication_identifier:
issn:
- 1386-9477
publication_status: published
publisher: Elsevier BV
status: public
title: Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator
type: journal_article
user_id: '254'
volume: 42
year: '2010'
...
---
_id: '26184'
author:
- first_name: Andreas
full_name: Warkentin, Andreas
last_name: Warkentin
citation:
ama: Warkentin A. Systematik zur funktionsorientierten Modellierung von Elektrik/
Elektronik-Systemen über den Produktlebenszyklus. Vol 279. Verlagsschriftenreihe
des Heinz Nixdorf Instituts, Paderborn; 2010.
apa: Warkentin, A. (2010). Systematik zur funktionsorientierten Modellierung
von Elektrik/ Elektronik-Systemen über den Produktlebenszyklus (Vol. 279).
Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn.
bibtex: '@book{Warkentin_2010, series={Verlagsschriftenreihe des Heinz Nixdorf Instituts,
Paderborn}, title={Systematik zur funktionsorientierten Modellierung von Elektrik/
Elektronik-Systemen über den Produktlebenszyklus}, volume={279}, publisher={Verlagsschriftenreihe
des Heinz Nixdorf Instituts, Paderborn}, author={Warkentin, Andreas}, year={2010},
collection={Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn} }'
chicago: Warkentin, Andreas. Systematik zur funktionsorientierten Modellierung
von Elektrik/ Elektronik-Systemen über den Produktlebenszyklus. Vol. 279.
Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn. Verlagsschriftenreihe
des Heinz Nixdorf Instituts, Paderborn, 2010.
ieee: A. Warkentin, Systematik zur funktionsorientierten Modellierung von Elektrik/
Elektronik-Systemen über den Produktlebenszyklus, vol. 279. Verlagsschriftenreihe
des Heinz Nixdorf Instituts, Paderborn, 2010.
mla: Warkentin, Andreas. Systematik zur funktionsorientierten Modellierung von
Elektrik/ Elektronik-Systemen über den Produktlebenszyklus. Verlagsschriftenreihe
des Heinz Nixdorf Instituts, Paderborn, 2010.
short: A. Warkentin, Systematik zur funktionsorientierten Modellierung von Elektrik/
Elektronik-Systemen über den Produktlebenszyklus, Verlagsschriftenreihe des Heinz
Nixdorf Instituts, Paderborn, 2010.
date_created: 2021-10-15T07:36:16Z
date_updated: 2024-07-12T07:05:14Z
department:
- _id: '26'
intvolume: ' 279'
language:
- iso: ger
publication_status: published
publisher: Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn
series_title: Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn
status: public
title: Systematik zur funktionsorientierten Modellierung von Elektrik/ Elektronik-Systemen
über den Produktlebenszyklus
type: dissertation
user_id: '1112'
volume: 279
year: '2010'
...
---
_id: '39740'
author:
- first_name: Martin
full_name: Urbanski, Martin
last_name: Urbanski
- first_name: Brandy
full_name: Kinkead, Brandy
last_name: Kinkead
- first_name: Torsten
full_name: Hegmann, Torsten
last_name: Hegmann
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
citation:
ama: Urbanski M, Kinkead B, Hegmann T, Kitzerow H-S. Director field of birefringent
stripes in liquid crystal/nanoparticle dispersions. Liquid Crystals. 2010;37(9):1151-1156.
doi:10.1080/02678292.2010.489160
apa: Urbanski, M., Kinkead, B., Hegmann, T., & Kitzerow, H.-S. (2010). Director
field of birefringent stripes in liquid crystal/nanoparticle dispersions. Liquid
Crystals, 37(9), 1151–1156. https://doi.org/10.1080/02678292.2010.489160
bibtex: '@article{Urbanski_Kinkead_Hegmann_Kitzerow_2010, title={Director field
of birefringent stripes in liquid crystal/nanoparticle dispersions}, volume={37},
DOI={10.1080/02678292.2010.489160},
number={9}, journal={Liquid Crystals}, publisher={Informa UK Limited}, author={Urbanski,
Martin and Kinkead, Brandy and Hegmann, Torsten and Kitzerow, Heinz-Siegfried},
year={2010}, pages={1151–1156} }'
chicago: 'Urbanski, Martin, Brandy Kinkead, Torsten Hegmann, and Heinz-Siegfried
Kitzerow. “Director Field of Birefringent Stripes in Liquid Crystal/Nanoparticle
Dispersions.” Liquid Crystals 37, no. 9 (2010): 1151–56. https://doi.org/10.1080/02678292.2010.489160.'
ieee: 'M. Urbanski, B. Kinkead, T. Hegmann, and H.-S. Kitzerow, “Director field
of birefringent stripes in liquid crystal/nanoparticle dispersions,” Liquid
Crystals, vol. 37, no. 9, pp. 1151–1156, 2010, doi: 10.1080/02678292.2010.489160.'
mla: Urbanski, Martin, et al. “Director Field of Birefringent Stripes in Liquid
Crystal/Nanoparticle Dispersions.” Liquid Crystals, vol. 37, no. 9, Informa
UK Limited, 2010, pp. 1151–56, doi:10.1080/02678292.2010.489160.
short: M. Urbanski, B. Kinkead, T. Hegmann, H.-S. Kitzerow, Liquid Crystals 37 (2010)
1151–1156.
date_created: 2023-01-24T18:46:15Z
date_updated: 2023-01-24T18:46:39Z
department:
- _id: '313'
- _id: '230'
- _id: '638'
doi: 10.1080/02678292.2010.489160
intvolume: ' 37'
issue: '9'
keyword:
- Condensed Matter Physics
- General Materials Science
- General Chemistry
language:
- iso: eng
page: 1151-1156
publication: Liquid Crystals
publication_identifier:
issn:
- 0267-8292
- 1366-5855
publication_status: published
publisher: Informa UK Limited
status: public
title: Director field of birefringent stripes in liquid crystal/nanoparticle dispersions
type: journal_article
user_id: '254'
volume: 37
year: '2010'
...
---
_id: '39741'
author:
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
citation:
ama: 'Kitzerow H-S. Blue Phases: Prior Art, Potential Polar Effects, Challenges.
Ferroelectrics. 2010;395(1):66-85. doi:10.1080/00150191003683807'
apa: 'Kitzerow, H.-S. (2010). Blue Phases: Prior Art, Potential Polar Effects, Challenges.
Ferroelectrics, 395(1), 66–85. https://doi.org/10.1080/00150191003683807'
bibtex: '@article{Kitzerow_2010, title={Blue Phases: Prior Art, Potential Polar
Effects, Challenges}, volume={395}, DOI={10.1080/00150191003683807},
number={1}, journal={Ferroelectrics}, publisher={Informa UK Limited}, author={Kitzerow,
Heinz-Siegfried}, year={2010}, pages={66–85} }'
chicago: 'Kitzerow, Heinz-Siegfried. “Blue Phases: Prior Art, Potential Polar Effects,
Challenges.” Ferroelectrics 395, no. 1 (2010): 66–85. https://doi.org/10.1080/00150191003683807.'
ieee: 'H.-S. Kitzerow, “Blue Phases: Prior Art, Potential Polar Effects, Challenges,”
Ferroelectrics, vol. 395, no. 1, pp. 66–85, 2010, doi: 10.1080/00150191003683807.'
mla: 'Kitzerow, Heinz-Siegfried. “Blue Phases: Prior Art, Potential Polar Effects,
Challenges.” Ferroelectrics, vol. 395, no. 1, Informa UK Limited, 2010,
pp. 66–85, doi:10.1080/00150191003683807.'
short: H.-S. Kitzerow, Ferroelectrics 395 (2010) 66–85.
date_created: 2023-01-24T18:47:05Z
date_updated: 2023-01-24T18:47:37Z
department:
- _id: '313'
- _id: '230'
- _id: '638'
doi: 10.1080/00150191003683807
intvolume: ' 395'
issue: '1'
keyword:
- Condensed Matter Physics
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
page: 66-85
publication: Ferroelectrics
publication_identifier:
issn:
- 0015-0193
- 1563-5112
publication_status: published
publisher: Informa UK Limited
status: public
title: 'Blue Phases: Prior Art, Potential Polar Effects, Challenges'
type: journal_article
user_id: '254'
volume: 395
year: '2010'
...
---
_id: '39972'
author:
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
citation:
ama: Kitzerow H-S. 33. Arbeitstagung Flüssigkristalle. Nachrichten aus der Chemie.
2010;53(6):678-679. doi:10.1002/nadc.20050530635
apa: Kitzerow, H.-S. (2010). 33. Arbeitstagung Flüssigkristalle. Nachrichten
Aus Der Chemie, 53(6), 678–679. https://doi.org/10.1002/nadc.20050530635
bibtex: '@article{Kitzerow_2010, title={33. Arbeitstagung Flüssigkristalle}, volume={53},
DOI={10.1002/nadc.20050530635},
number={6}, journal={Nachrichten aus der Chemie}, publisher={Wiley}, author={Kitzerow,
Heinz-Siegfried}, year={2010}, pages={678–679} }'
chicago: 'Kitzerow, Heinz-Siegfried. “33. Arbeitstagung Flüssigkristalle.” Nachrichten
Aus Der Chemie 53, no. 6 (2010): 678–79. https://doi.org/10.1002/nadc.20050530635.'
ieee: 'H.-S. Kitzerow, “33. Arbeitstagung Flüssigkristalle,” Nachrichten aus
der Chemie, vol. 53, no. 6, pp. 678–679, 2010, doi: 10.1002/nadc.20050530635.'
mla: Kitzerow, Heinz-Siegfried. “33. Arbeitstagung Flüssigkristalle.” Nachrichten
Aus Der Chemie, vol. 53, no. 6, Wiley, 2010, pp. 678–79, doi:10.1002/nadc.20050530635.
short: H.-S. Kitzerow, Nachrichten Aus Der Chemie 53 (2010) 678–679.
date_created: 2023-01-25T11:31:11Z
date_updated: 2023-01-25T11:38:23Z
department:
- _id: '313'
- _id: '230'
- _id: '638'
doi: 10.1002/nadc.20050530635
intvolume: ' 53'
issue: '6'
keyword:
- General Chemical Engineering
- General Chemistry
language:
- iso: eng
page: 678-679
publication: Nachrichten aus der Chemie
publication_identifier:
issn:
- 1439-9598
publication_status: published
publisher: Wiley
status: public
title: 33. Arbeitstagung Flüssigkristalle
type: journal_article
user_id: '254'
volume: 53
year: '2010'
...
---
_id: '39739'
abstract:
- lang: eng
text: " \r\n The electrooptic characteristics of the field-induced reorientation
of a nematic liquid crystal are studied using graphene layers as transparent conductive
electrodes. The covering of a large area with highly conductive graphene was achieved
by the thermal reduction of a graphene oxide film. The conductivity of the graphene
electrode provides electrooptic properties that are comparable to those of liquid
crystal cells with two conventional indium tin oxide electrodes. This result confirms
earlier studies and suggestions concerning graphene-based liquid crystal devices.
It demonstrates that the fabrication of graphene layers via the deposition and
subsequent reduction of graphene oxide is suitable for liquid crystal applications.
\r\n "
article_number: '100206'
author:
- first_name: Gaby
full_name: Nordendorf, Gaby
last_name: Nordendorf
- first_name: Olga
full_name: Kasdorf, Olga
last_name: Kasdorf
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
- first_name: Yanyu
full_name: Liang, Yanyu
last_name: Liang
- first_name: Xinliang
full_name: Feng, Xinliang
last_name: Feng
- first_name: Klaus
full_name: Müllen, Klaus
last_name: Müllen
citation:
ama: Nordendorf G, Kasdorf O, Kitzerow H-S, Liang Y, Feng X, Müllen K. Liquid Crystal
Addressing by Graphene Electrodes Made from Graphene Oxide. Japanese Journal
of Applied Physics. 2010;49(10R). doi:10.1143/jjap.49.100206
apa: Nordendorf, G., Kasdorf, O., Kitzerow, H.-S., Liang, Y., Feng, X., & Müllen,
K. (2010). Liquid Crystal Addressing by Graphene Electrodes Made from Graphene
Oxide. Japanese Journal of Applied Physics, 49(10R), Article 100206.
https://doi.org/10.1143/jjap.49.100206
bibtex: '@article{Nordendorf_Kasdorf_Kitzerow_Liang_Feng_Müllen_2010, title={Liquid
Crystal Addressing by Graphene Electrodes Made from Graphene Oxide}, volume={49},
DOI={10.1143/jjap.49.100206},
number={10R100206}, journal={Japanese Journal of Applied Physics}, publisher={IOP
Publishing}, author={Nordendorf, Gaby and Kasdorf, Olga and Kitzerow, Heinz-Siegfried
and Liang, Yanyu and Feng, Xinliang and Müllen, Klaus}, year={2010} }'
chicago: Nordendorf, Gaby, Olga Kasdorf, Heinz-Siegfried Kitzerow, Yanyu Liang,
Xinliang Feng, and Klaus Müllen. “Liquid Crystal Addressing by Graphene Electrodes
Made from Graphene Oxide.” Japanese Journal of Applied Physics 49, no.
10R (2010). https://doi.org/10.1143/jjap.49.100206.
ieee: 'G. Nordendorf, O. Kasdorf, H.-S. Kitzerow, Y. Liang, X. Feng, and K. Müllen,
“Liquid Crystal Addressing by Graphene Electrodes Made from Graphene Oxide,” Japanese
Journal of Applied Physics, vol. 49, no. 10R, Art. no. 100206, 2010, doi:
10.1143/jjap.49.100206.'
mla: Nordendorf, Gaby, et al. “Liquid Crystal Addressing by Graphene Electrodes
Made from Graphene Oxide.” Japanese Journal of Applied Physics, vol. 49,
no. 10R, 100206, IOP Publishing, 2010, doi:10.1143/jjap.49.100206.
short: G. Nordendorf, O. Kasdorf, H.-S. Kitzerow, Y. Liang, X. Feng, K. Müllen,
Japanese Journal of Applied Physics 49 (2010).
date_created: 2023-01-24T18:45:26Z
date_updated: 2023-01-24T18:45:56Z
department:
- _id: '313'
- _id: '230'
- _id: '638'
doi: 10.1143/jjap.49.100206
intvolume: ' 49'
issue: 10R
keyword:
- General Physics and Astronomy
- General Engineering
language:
- iso: eng
publication: Japanese Journal of Applied Physics
publication_identifier:
issn:
- 0021-4922
- 1347-4065
publication_status: published
publisher: IOP Publishing
status: public
title: Liquid Crystal Addressing by Graphene Electrodes Made from Graphene Oxide
type: journal_article
user_id: '254'
volume: 49
year: '2010'
...
---
_id: '39738'
article_number: '1118'
author:
- first_name: Martin
full_name: Urbanski, Martin
last_name: Urbanski
- first_name: Brandy
full_name: Kinkead, Brandy
last_name: Kinkead
- first_name: Hao
full_name: Qi, Hao
last_name: Qi
- first_name: Torsten
full_name: Hegmann, Torsten
last_name: Hegmann
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
citation:
ama: Urbanski M, Kinkead B, Qi H, Hegmann T, Kitzerow H-S. Electroconvection in
nematic liquid crystals via nanoparticle doping. Nanoscale. 2010;2(7).
doi:10.1039/c0nr00139b
apa: Urbanski, M., Kinkead, B., Qi, H., Hegmann, T., & Kitzerow, H.-S. (2010).
Electroconvection in nematic liquid crystals via nanoparticle doping. Nanoscale,
2(7), Article 1118. https://doi.org/10.1039/c0nr00139b
bibtex: '@article{Urbanski_Kinkead_Qi_Hegmann_Kitzerow_2010, title={Electroconvection
in nematic liquid crystals via nanoparticle doping}, volume={2}, DOI={10.1039/c0nr00139b},
number={71118}, journal={Nanoscale}, publisher={Royal Society of Chemistry (RSC)},
author={Urbanski, Martin and Kinkead, Brandy and Qi, Hao and Hegmann, Torsten
and Kitzerow, Heinz-Siegfried}, year={2010} }'
chicago: Urbanski, Martin, Brandy Kinkead, Hao Qi, Torsten Hegmann, and Heinz-Siegfried
Kitzerow. “Electroconvection in Nematic Liquid Crystals via Nanoparticle Doping.”
Nanoscale 2, no. 7 (2010). https://doi.org/10.1039/c0nr00139b.
ieee: 'M. Urbanski, B. Kinkead, H. Qi, T. Hegmann, and H.-S. Kitzerow, “Electroconvection
in nematic liquid crystals via nanoparticle doping,” Nanoscale, vol. 2,
no. 7, Art. no. 1118, 2010, doi: 10.1039/c0nr00139b.'
mla: Urbanski, Martin, et al. “Electroconvection in Nematic Liquid Crystals via
Nanoparticle Doping.” Nanoscale, vol. 2, no. 7, 1118, Royal Society of
Chemistry (RSC), 2010, doi:10.1039/c0nr00139b.
short: M. Urbanski, B. Kinkead, H. Qi, T. Hegmann, H.-S. Kitzerow, Nanoscale 2 (2010).
date_created: 2023-01-24T18:44:37Z
date_updated: 2023-01-24T18:45:04Z
department:
- _id: '313'
- _id: '230'
- _id: '638'
doi: 10.1039/c0nr00139b
intvolume: ' 2'
issue: '7'
keyword:
- General Materials Science
language:
- iso: eng
publication: Nanoscale
publication_identifier:
issn:
- 2040-3364
- 2040-3372
publication_status: published
publisher: Royal Society of Chemistry (RSC)
status: public
title: Electroconvection in nematic liquid crystals via nanoparticle doping
type: journal_article
user_id: '254'
volume: 2
year: '2010'
...
---
_id: '39737'
article_number: '3846'
author:
- first_name: Alexander
full_name: Lorenz, Alexander
last_name: Lorenz
- first_name: Rolf
full_name: Schuhmann, Rolf
last_name: Schuhmann
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
citation:
ama: Lorenz A, Schuhmann R, Kitzerow H-S. Switchable waveguiding in two liquid-crystal-filled
photonic crystal fibers. Applied Optics. 2010;49(20). doi:10.1364/ao.49.003846
apa: Lorenz, A., Schuhmann, R., & Kitzerow, H.-S. (2010). Switchable waveguiding
in two liquid-crystal-filled photonic crystal fibers. Applied Optics, 49(20),
Article 3846. https://doi.org/10.1364/ao.49.003846
bibtex: '@article{Lorenz_Schuhmann_Kitzerow_2010, title={Switchable waveguiding
in two liquid-crystal-filled photonic crystal fibers}, volume={49}, DOI={10.1364/ao.49.003846},
number={203846}, journal={Applied Optics}, publisher={The Optical Society}, author={Lorenz,
Alexander and Schuhmann, Rolf and Kitzerow, Heinz-Siegfried}, year={2010} }'
chicago: Lorenz, Alexander, Rolf Schuhmann, and Heinz-Siegfried Kitzerow. “Switchable
Waveguiding in Two Liquid-Crystal-Filled Photonic Crystal Fibers.” Applied
Optics 49, no. 20 (2010). https://doi.org/10.1364/ao.49.003846.
ieee: 'A. Lorenz, R. Schuhmann, and H.-S. Kitzerow, “Switchable waveguiding in two
liquid-crystal-filled photonic crystal fibers,” Applied Optics, vol. 49,
no. 20, Art. no. 3846, 2010, doi: 10.1364/ao.49.003846.'
mla: Lorenz, Alexander, et al. “Switchable Waveguiding in Two Liquid-Crystal-Filled
Photonic Crystal Fibers.” Applied Optics, vol. 49, no. 20, 3846, The Optical
Society, 2010, doi:10.1364/ao.49.003846.
short: A. Lorenz, R. Schuhmann, H.-S. Kitzerow, Applied Optics 49 (2010).
date_created: 2023-01-24T18:43:52Z
date_updated: 2023-01-24T18:44:16Z
department:
- _id: '313'
- _id: '230'
- _id: '638'
doi: 10.1364/ao.49.003846
intvolume: ' 49'
issue: '20'
language:
- iso: eng
publication: Applied Optics
publication_identifier:
issn:
- 0003-6935
- 1539-4522
publication_status: published
publisher: The Optical Society
status: public
title: Switchable waveguiding in two liquid-crystal-filled photonic crystal fibers
type: journal_article
user_id: '254'
volume: 49
year: '2010'
...
---
_id: '39736'
author:
- first_name: Brandy
full_name: Kinkead, Brandy
last_name: Kinkead
- first_name: Martin
full_name: Urbanski, Martin
last_name: Urbanski
- first_name: Hao
full_name: Qi, Hao
last_name: Qi
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
- first_name: Torsten
full_name: Hegmann, Torsten
last_name: Hegmann
citation:
ama: 'Kinkead B, Urbanski M, Qi H, Kitzerow H-S, Hegmann T. Alignment and electrooptic
effects in nanoparticle-doped nematic liquid crystals. In: Khoo IC, ed. SPIE
Proceedings. SPIE; 2010. doi:10.1117/12.858831'
apa: Kinkead, B., Urbanski, M., Qi, H., Kitzerow, H.-S., & Hegmann, T. (2010).
Alignment and electrooptic effects in nanoparticle-doped nematic liquid crystals.
In I. C. Khoo (Ed.), SPIE Proceedings. SPIE. https://doi.org/10.1117/12.858831
bibtex: '@inproceedings{Kinkead_Urbanski_Qi_Kitzerow_Hegmann_2010, title={Alignment
and electrooptic effects in nanoparticle-doped nematic liquid crystals}, DOI={10.1117/12.858831}, booktitle={SPIE
Proceedings}, publisher={SPIE}, author={Kinkead, Brandy and Urbanski, Martin and
Qi, Hao and Kitzerow, Heinz-Siegfried and Hegmann, Torsten}, editor={Khoo, Iam
Choon}, year={2010} }'
chicago: Kinkead, Brandy, Martin Urbanski, Hao Qi, Heinz-Siegfried Kitzerow, and
Torsten Hegmann. “Alignment and Electrooptic Effects in Nanoparticle-Doped Nematic
Liquid Crystals.” In SPIE Proceedings, edited by Iam Choon Khoo. SPIE,
2010. https://doi.org/10.1117/12.858831.
ieee: 'B. Kinkead, M. Urbanski, H. Qi, H.-S. Kitzerow, and T. Hegmann, “Alignment
and electrooptic effects in nanoparticle-doped nematic liquid crystals,” in SPIE
Proceedings, 2010, doi: 10.1117/12.858831.'
mla: Kinkead, Brandy, et al. “Alignment and Electrooptic Effects in Nanoparticle-Doped
Nematic Liquid Crystals.” SPIE Proceedings, edited by Iam Choon Khoo, SPIE,
2010, doi:10.1117/12.858831.
short: 'B. Kinkead, M. Urbanski, H. Qi, H.-S. Kitzerow, T. Hegmann, in: I.C. Khoo
(Ed.), SPIE Proceedings, SPIE, 2010.'
date_created: 2023-01-24T18:43:08Z
date_updated: 2023-01-24T18:43:33Z
department:
- _id: '313'
- _id: '230'
- _id: '638'
doi: 10.1117/12.858831
editor:
- first_name: Iam Choon
full_name: Khoo, Iam Choon
last_name: Khoo
language:
- iso: eng
publication: SPIE Proceedings
publication_identifier:
issn:
- 0277-786X
publication_status: published
publisher: SPIE
status: public
title: Alignment and electrooptic effects in nanoparticle-doped nematic liquid crystals
type: conference
user_id: '254'
year: '2010'
...
---
_id: '41366'
author:
- first_name: Andreas
full_name: Seifert, Andreas
id: '693'
last_name: Seifert
- first_name: Niclas
full_name: Schaper, Niclas
last_name: Schaper
citation:
ama: Seifert A, Schaper N. Überprüfung eines Kompetenzmodells und Messinstruments
zur Strukturierung allgemeiner pädagogischer Kompetenz in der universitären Lehrerbildung.
Lehrerbildung auf dem Prüfstand. 2010;3(2):179-198.
apa: Seifert, A., & Schaper, N. (2010). Überprüfung eines Kompetenzmodells und
Messinstruments zur Strukturierung allgemeiner pädagogischer Kompetenz in der
universitären Lehrerbildung. Lehrerbildung auf dem Prüfstand, 3(2),
179–198.
bibtex: '@article{Seifert_Schaper_2010, title={Überprüfung eines Kompetenzmodells
und Messinstruments zur Strukturierung allgemeiner pädagogischer Kompetenz in
der universitären Lehrerbildung.}, volume={3}, number={2}, journal={Lehrerbildung
auf dem Prüfstand}, author={Seifert, Andreas and Schaper, Niclas}, year={2010},
pages={179–198} }'
chicago: 'Seifert, Andreas, and Niclas Schaper. “Überprüfung eines Kompetenzmodells
und Messinstruments zur Strukturierung allgemeiner pädagogischer Kompetenz in
der universitären Lehrerbildung.” Lehrerbildung auf dem Prüfstand 3, no.
2 (2010): 179–98.'
ieee: A. Seifert and N. Schaper, “Überprüfung eines Kompetenzmodells und Messinstruments
zur Strukturierung allgemeiner pädagogischer Kompetenz in der universitären Lehrerbildung.,”
Lehrerbildung auf dem Prüfstand, vol. 3, no. 2, pp. 179–198, 2010.
mla: Seifert, Andreas, and Niclas Schaper. “Überprüfung eines Kompetenzmodells und
Messinstruments zur Strukturierung allgemeiner pädagogischer Kompetenz in der
universitären Lehrerbildung.” Lehrerbildung auf dem Prüfstand, vol. 3,
no. 2, 2010, pp. 179–98.
short: A. Seifert, N. Schaper, Lehrerbildung auf dem Prüfstand 3 (2010) 179–198.
date_created: 2023-02-01T10:25:38Z
date_updated: 2023-02-01T10:26:02Z
department:
- _id: '33'
- _id: '427'
intvolume: ' 3'
issue: '2'
language:
- iso: ger
page: 179-198
publication: Lehrerbildung auf dem Prüfstand
publication_status: published
quality_controlled: '1'
status: public
title: Überprüfung eines Kompetenzmodells und Messinstruments zur Strukturierung allgemeiner
pädagogischer Kompetenz in der universitären Lehrerbildung.
type: journal_article
user_id: '693'
volume: 3
year: '2010'
...
---
_id: '41463'
author:
- first_name: Georgq
full_name: Israel, Georgq
last_name: Israel
- first_name: Andreas
full_name: Seifert, Andreas
id: '693'
last_name: Seifert
- first_name: Johannes
full_name: König, Johannes
last_name: König
- first_name: Niclas
full_name: Schaper, Niclas
last_name: Schaper
- first_name: Sigrid
full_name: Blömeke, Sigrid
last_name: Blömeke
citation:
ama: 'Israel G, Seifert A, König J, Schaper N, Blömeke S. Entwicklung und empirische
Überprüfung eines phasenübergreifenden Berufsfähig-keitsprofils für angehende
Lehrpersonen. In: AEPF-Tagung „Mixed Methods in der empirischen Bildungsforschung”.
; 2010.'
apa: Israel, G., Seifert, A., König, J., Schaper, N., & Blömeke, S. (2010).
Entwicklung und empirische Überprüfung eines phasenübergreifenden Berufsfähig-keitsprofils
für angehende Lehrpersonen. AEPF-Tagung „Mixed Methods in der empirischen Bildungsforschung”.
AEPF-Tagung „Mixed Methods in der empirischen Bildungsforschung”, Jena.
bibtex: '@inproceedings{Israel_Seifert_König_Schaper_Blömeke_2010, title={Entwicklung
und empirische Überprüfung eines phasenübergreifenden Berufsfähig-keitsprofils
für angehende Lehrpersonen.}, booktitle={AEPF-Tagung „Mixed Methods in der empirischen
Bildungsforschung”}, author={Israel, Georgq and Seifert, Andreas and König, Johannes
and Schaper, Niclas and Blömeke, Sigrid}, year={2010} }'
chicago: Israel, Georgq, Andreas Seifert, Johannes König, Niclas Schaper, and Sigrid
Blömeke. “Entwicklung und empirische Überprüfung eines phasenübergreifenden Berufsfähig-keitsprofils
für angehende Lehrpersonen.” In AEPF-Tagung „Mixed Methods in der empirischen
Bildungsforschung”, 2010.
ieee: G. Israel, A. Seifert, J. König, N. Schaper, and S. Blömeke, “Entwicklung
und empirische Überprüfung eines phasenübergreifenden Berufsfähig-keitsprofils
für angehende Lehrpersonen.,” presented at the AEPF-Tagung „Mixed Methods in der
empirischen Bildungsforschung”, Jena, 2010.
mla: Israel, Georgq, et al. “Entwicklung und empirische Überprüfung eines phasenübergreifenden
Berufsfähig-keitsprofils für angehende Lehrpersonen.” AEPF-Tagung „Mixed Methods
in der empirischen Bildungsforschung”, 2010.
short: 'G. Israel, A. Seifert, J. König, N. Schaper, S. Blömeke, in: AEPF-Tagung
„Mixed Methods in der empirischen Bildungsforschung”, 2010.'
conference:
end_date: 15.09.2010
location: Jena
name: AEPF-Tagung „Mixed Methods in der empirischen Bildungsforschung”
start_date: 13.09.2010
date_created: 2023-02-02T10:28:51Z
date_updated: 2023-02-02T10:28:57Z
department:
- _id: '33'
- _id: '427'
language:
- iso: ger
publication: AEPF-Tagung „Mixed Methods in der empirischen Bildungsforschung”
publication_status: published
quality_controlled: '1'
status: public
title: Entwicklung und empirische Überprüfung eines phasenübergreifenden Berufsfähig-keitsprofils
für angehende Lehrpersonen.
type: conference_abstract
user_id: '693'
year: '2010'
...
---
_id: '42030'
article_number: '125606 '
author:
- first_name: D
full_name: ' Richter, D'
last_name: ' Richter'
- first_name: R
full_name: Hafenbrak, R
last_name: Hafenbrak
- first_name: Klaus D.
full_name: Jöns, Klaus D.
id: '85353'
last_name: Jöns
- first_name: W-M
full_name: Schulz, W-M
last_name: Schulz
- first_name: M
full_name: Eichfelder, M
last_name: Eichfelder
- first_name: M
full_name: Heldmaier, M
last_name: Heldmaier
- first_name: R
full_name: Roßbach, R
last_name: Roßbach
- first_name: M
full_name: Jetter, M
last_name: Jetter
- first_name: P
full_name: Michler, P
last_name: Michler
citation:
ama: Richter D, Hafenbrak R, Jöns KD, et al. Low-density MOVPE grown InGaAs QDs
exhibiting ultra-narrow single exciton linewidths. 2010;21.
apa: Richter, D., Hafenbrak, R., Jöns, K. D., Schulz, W.-M., Eichfelder, M., Heldmaier,
M., Roßbach, R., Jetter, M., & Michler, P. (2010). Low-density MOVPE grown
InGaAs QDs exhibiting ultra-narrow single exciton linewidths (No. 125606;
Vol. 21).
bibtex: '@article{ Richter_Hafenbrak_Jöns_Schulz_Eichfelder_Heldmaier_Roßbach_Jetter_Michler_2010,
series={Nanotechnology }, title={Low-density MOVPE grown InGaAs QDs exhibiting
ultra-narrow single exciton linewidths}, volume={21}, number={125606}, author={
Richter, D and Hafenbrak, R and Jöns, Klaus D. and Schulz, W-M and Eichfelder,
M and Heldmaier, M and Roßbach, R and Jetter, M and Michler, P}, year={2010},
collection={Nanotechnology } }'
chicago: Richter, D, R Hafenbrak, Klaus D. Jöns, W-M Schulz, M Eichfelder, M Heldmaier,
R Roßbach, M Jetter, and P Michler. “Low-Density MOVPE Grown InGaAs QDs Exhibiting
Ultra-Narrow Single Exciton Linewidths.” Nanotechnology , 2010.
ieee: D. Richter et al., “Low-density MOVPE grown InGaAs QDs exhibiting
ultra-narrow single exciton linewidths,” vol. 21. 2010.
mla: Richter, D., et al. Low-Density MOVPE Grown InGaAs QDs Exhibiting Ultra-Narrow
Single Exciton Linewidths. 125606, 2010.
short: D. Richter, R. Hafenbrak, K.D. Jöns, W.-M. Schulz, M. Eichfelder, M. Heldmaier,
R. Roßbach, M. Jetter, P. Michler, 21 (2010).
date_created: 2023-02-13T08:19:11Z
date_updated: 2023-02-13T08:44:48Z
department:
- _id: '623'
intvolume: ' 21'
language:
- iso: eng
series_title: 'Nanotechnology '
status: public
title: Low-density MOVPE grown InGaAs QDs exhibiting ultra-narrow single exciton linewidths
type: conference
user_id: '71124'
volume: 21
year: '2010'
...
---
_id: '8179'
abstract:
- lang: eng
text: Given the density matrix rho of a bipartite quantum state, the quantum separability
problem asks whether rho is entangled or separable. In 2003, Gurvits showed that
this problem is NP-hard if rho is located within an inverse exponential (with
respect to dimension) distance from the border of the set of separable quantum
states. In this paper, we extend this NP-hardness to an inverse polynomial distance
from the separable set. The result follows from a simple combination of works
by Gurvits, Ioannou, and Liu. We apply our result to show (1) an immediate lower
bound on the maximum distance between a bound entangled state and the separable
set (assuming P != NP), and (2) NP-hardness for the problem of determining whether
a completely positive trace-preserving linear map is entanglement-breaking.
article_type: original
author:
- first_name: Sevag
full_name: Gharibian, Sevag
id: '71541'
last_name: Gharibian
orcid: 0000-0002-9992-3379
citation:
ama: Gharibian S. Strong NP-hardness of the quantum separability problem. Quantum
Information & Computation. 2010;10(3{\ & }4):343-360.
apa: Gharibian, S. (2010). Strong NP-hardness of the quantum separability problem.
Quantum Information & Computation, 10(3{\ & }4), 343–360.
bibtex: '@article{Gharibian_2010, title={Strong NP-hardness of the quantum separability
problem}, volume={10}, number={3{\ & }4}, journal={Quantum Information &
Computation}, author={Gharibian, Sevag}, year={2010}, pages={343–360} }'
chicago: 'Gharibian, Sevag. “Strong NP-Hardness of the Quantum Separability Problem.”
Quantum Information & Computation 10, no. 3{\ & }4 (2010): 343–60.'
ieee: S. Gharibian, “Strong NP-hardness of the quantum separability problem,” Quantum
Information & Computation, vol. 10, no. 3{\ & }4, pp. 343–360, 2010.
mla: Gharibian, Sevag. “Strong NP-Hardness of the Quantum Separability Problem.”
Quantum Information & Computation, vol. 10, no. 3{\ & }4, 2010,
pp. 343–60.
short: S. Gharibian, Quantum Information & Computation 10 (2010) 343–360.
date_created: 2019-03-01T12:09:59Z
date_updated: 2023-02-28T11:04:38Z
department:
- _id: '623'
- _id: '7'
extern: '1'
external_id:
arxiv:
- '0810.4507'
intvolume: ' 10'
issue: 3{\&}4
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/0810.4507
oa: '1'
page: 343-360
publication: Quantum Information & Computation
publication_status: published
status: public
title: Strong NP-hardness of the quantum separability problem
type: journal_article
user_id: '71541'
volume: 10
year: '2010'
...
---
_id: '4127'
abstract:
- lang: eng
text: "The dynamics of charge and spin injection currents excited by circularly
polarized, one-color laser beams in\r\nsemiconductor quantum wells is analyzed.
Our microscopic approach is based on a 14x14 k · p band-structure\r\ntheory in
combination with multisubband semiconductor Bloch equations which allows a detailed
analysis of\r\nthe photogenerated carrier distributions and coherences in k space.
Charge and spin injection currents are\r\nnumerically calculated for [110]- and
[001]-grown GaAs quantum wells including dc population contributions\r\nand ac
contributions that arise from intersubband coherences. The dependencies of the
injection currents on the\r\nexcitation conditions, in particular, the photon
energy are computed and discussed."
article_number: '115316'
article_type: original
author:
- first_name: Huynh Thanh
full_name: Duc, Huynh Thanh
last_name: Duc
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: Duc HT, Förstner J, Meier T. Microscopic analysis of charge and spin photocurrents
injected by circularly polarized one-color laser pulses in GaAs quantum wells.
Physical Review B. 2010;82(11). doi:10.1103/physrevb.82.115316
apa: Duc, H. T., Förstner, J., & Meier, T. (2010). Microscopic analysis of charge
and spin photocurrents injected by circularly polarized one-color laser pulses
in GaAs quantum wells. Physical Review B, 82(11), Article 115316.
https://doi.org/10.1103/physrevb.82.115316
bibtex: '@article{Duc_Förstner_Meier_2010, title={Microscopic analysis of charge
and spin photocurrents injected by circularly polarized one-color laser pulses
in GaAs quantum wells}, volume={82}, DOI={10.1103/physrevb.82.115316},
number={11115316}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Duc, Huynh Thanh and Förstner, Jens and Meier, Torsten}, year={2010}
}'
chicago: Duc, Huynh Thanh, Jens Förstner, and Torsten Meier. “Microscopic Analysis
of Charge and Spin Photocurrents Injected by Circularly Polarized One-Color Laser
Pulses in GaAs Quantum Wells.” Physical Review B 82, no. 11 (2010). https://doi.org/10.1103/physrevb.82.115316.
ieee: 'H. T. Duc, J. Förstner, and T. Meier, “Microscopic analysis of charge and
spin photocurrents injected by circularly polarized one-color laser pulses in
GaAs quantum wells,” Physical Review B, vol. 82, no. 11, Art. no. 115316,
2010, doi: 10.1103/physrevb.82.115316.'
mla: Duc, Huynh Thanh, et al. “Microscopic Analysis of Charge and Spin Photocurrents
Injected by Circularly Polarized One-Color Laser Pulses in GaAs Quantum Wells.”
Physical Review B, vol. 82, no. 11, 115316, American Physical Society (APS),
2010, doi:10.1103/physrevb.82.115316.
short: H.T. Duc, J. Förstner, T. Meier, Physical Review B 82 (2010).
date_created: 2018-08-27T10:25:36Z
date_updated: 2023-04-19T11:11:47Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '293'
- _id: '170'
doi: 10.1103/physrevb.82.115316
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-27T10:27:00Z
date_updated: 2018-08-27T10:27:00Z
file_id: '4128'
file_name: 2010 Duc,Förstner,Meier_Microscopic analysis of charge and spin photocurrents
injected by circularly polarized one-color laser pulses in GaAs quantum wells.pdf
file_size: 639662
relation: main_file
success: 1
file_date_updated: 2018-08-27T10:27:00Z
has_accepted_license: '1'
intvolume: ' 82'
issue: '11'
keyword:
- tet_topic_qw
language:
- iso: eng
publication: Physical Review B
publication_identifier:
issn:
- 1098-0121
- 1550-235X
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Microscopic analysis of charge and spin photocurrents injected by circularly
polarized one-color laser pulses in GaAs quantum wells
type: journal_article
user_id: '49063'
volume: 82
year: '2010'
...
---
_id: '4176'
abstract:
- lang: eng
text: A microscopic theory that describes injection currents in GaAs quantum wells
is presented. 14 × 14 band k.p theory is used to compute the band structure including
anisotropy and spin-orbit interaction. Transient injection currents are obtained
via numerical solutions of the semiconductor Bloch equations. Depending on the
growth direction of the considered quantum well system and the propagation and
polarization directions of the incident light beam, it is possible to generate
charge and/or spin photocurrents on ultrashort time scales. The dependence of
the photocurrents on the excitation conditions is computed and discussed.
author:
- first_name: Huynh Thanh
full_name: Duc, Huynh Thanh
last_name: Duc
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: 'Duc HT, Förstner J, Meier T. Microscopic theoretical analysis of optically
generated injection currents in semiconductor quantum wells. In: Song J-J, Tsen
K-T, Betz M, Elezzabi AY, eds. Ultrafast Phenomena in Semiconductors and Nanostructure
Materials XIV. Vol 7600. SPIE Proceedings. SPIE; 2010:76000S-76000S - 9. doi:10.1117/12.840388'
apa: Duc, H. T., Förstner, J., & Meier, T. (2010). Microscopic theoretical analysis
of optically generated injection currents in semiconductor quantum wells. In J.-J.
Song, K.-T. Tsen, M. Betz, & A. Y. Elezzabi (Eds.), Ultrafast Phenomena
in Semiconductors and Nanostructure Materials XIV (Vol. 7600, pp. 76000S-76000S
– 9). SPIE. https://doi.org/10.1117/12.840388
bibtex: '@inproceedings{Duc_Förstner_Meier_2010, series={SPIE Proceedings}, title={Microscopic
theoretical analysis of optically generated injection currents in semiconductor
quantum wells}, volume={7600}, DOI={10.1117/12.840388},
booktitle={Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV},
publisher={SPIE}, author={Duc, Huynh Thanh and Förstner, Jens and Meier, Torsten},
editor={Song, Jin-Joo and Tsen, Kong-Thon and Betz, Markus and Elezzabi, Abdulhakem
Y.}, year={2010}, pages={76000S-76000S–9}, collection={SPIE Proceedings} }'
chicago: Duc, Huynh Thanh, Jens Förstner, and Torsten Meier. “Microscopic Theoretical
Analysis of Optically Generated Injection Currents in Semiconductor Quantum Wells.”
In Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV,
edited by Jin-Joo Song, Kong-Thon Tsen, Markus Betz, and Abdulhakem Y. Elezzabi,
7600:76000S-76000S – 9. SPIE Proceedings. SPIE, 2010. https://doi.org/10.1117/12.840388.
ieee: 'H. T. Duc, J. Förstner, and T. Meier, “Microscopic theoretical analysis of
optically generated injection currents in semiconductor quantum wells,” in Ultrafast
Phenomena in Semiconductors and Nanostructure Materials XIV, 2010, vol. 7600,
pp. 76000S-76000S–9, doi: 10.1117/12.840388.'
mla: Duc, Huynh Thanh, et al. “Microscopic Theoretical Analysis of Optically Generated
Injection Currents in Semiconductor Quantum Wells.” Ultrafast Phenomena in
Semiconductors and Nanostructure Materials XIV, edited by Jin-Joo Song et
al., vol. 7600, SPIE, 2010, pp. 76000S-76000S – 9, doi:10.1117/12.840388.
short: 'H.T. Duc, J. Förstner, T. Meier, in: J.-J. Song, K.-T. Tsen, M. Betz, A.Y.
Elezzabi (Eds.), Ultrafast Phenomena in Semiconductors and Nanostructure Materials
XIV, SPIE, 2010, pp. 76000S-76000S–9.'
date_created: 2018-08-28T09:00:53Z
date_updated: 2023-04-19T11:07:47Z
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
doi: 10.1117/12.840388
editor:
- first_name: Jin-Joo
full_name: Song, Jin-Joo
last_name: Song
- first_name: Kong-Thon
full_name: Tsen, Kong-Thon
last_name: Tsen
- first_name: Markus
full_name: Betz, Markus
last_name: Betz
- first_name: Abdulhakem Y.
full_name: Elezzabi, Abdulhakem Y.
last_name: Elezzabi
intvolume: ' 7600'
keyword:
- tet_topic_qw
language:
- iso: eng
page: 76000S-76000S-9
publication: Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV
publication_status: published
publisher: SPIE
series_title: SPIE Proceedings
status: public
title: Microscopic theoretical analysis of optically generated injection currents
in semiconductor quantum wells
type: conference
user_id: '49063'
volume: 7600
year: '2010'
...
---
_id: '24980'
abstract:
- lang: eng
text: We discuss transport and localization properties on the insulating side of
the disorder dominated superconductor-insulator transition, described in terms
of the dirty boson model. Analyzing the spectral properties of the interacting
bosons in the absence of phonons, we argue that the Bose glass phase admits three
distinct regimes. For strongest disorder the boson system is a fully localized,
perfect insulator at any temperature. At smaller disorder, only the low temperature
phase exhibits perfect insulation while delocalization takes place above a finite
temperature. We argue that a third phase must intervene between these perfect
insulators and the superconductor. This conducting Bose glass phase is characterized
by a mobility edge in the many body spectrum, located at finite energy above the
ground state. In this insulating regime purely electronically activated transport
occurs, with a conductivity following an Arrhenius law at asymptotically low temperatures,
while a tendency to superactivation is predicted at higher T. These predictions
are in good agreement with recent transport experiments in highly disordered films
of superconducting materials.
author:
- first_name: N.
full_name: Gögh, N.
last_name: Gögh
- first_name: P.
full_name: Thomas, P.
last_name: Thomas
- first_name: I.
full_name: Kuznetsova, I.
last_name: Kuznetsova
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: I.
full_name: Varga, I.
last_name: Varga
citation:
ama: 'Gögh N, Thomas P, Kuznetsova I, Meier T, Varga I. Localization of excitons
in weakly disordered semiconductor structures: A model study. Annalen der Physik.
2010;18(12):905-909. doi:10.1002/andp.20095211219'
apa: 'Gögh, N., Thomas, P., Kuznetsova, I., Meier, T., & Varga, I. (2010). Localization
of excitons in weakly disordered semiconductor structures: A model study. Annalen
Der Physik, 18(12), 905–909. https://doi.org/10.1002/andp.20095211219'
bibtex: '@article{Gögh_Thomas_Kuznetsova_Meier_Varga_2010, title={Localization of
excitons in weakly disordered semiconductor structures: A model study}, volume={18},
DOI={10.1002/andp.20095211219},
number={12}, journal={Annalen der Physik}, author={Gögh, N. and Thomas, P. and
Kuznetsova, I. and Meier, Torsten and Varga, I.}, year={2010}, pages={905–909}
}'
chicago: 'Gögh, N., P. Thomas, I. Kuznetsova, Torsten Meier, and I. Varga. “Localization
of Excitons in Weakly Disordered Semiconductor Structures: A Model Study.” Annalen
Der Physik 18, no. 12 (2010): 905–9. https://doi.org/10.1002/andp.20095211219.'
ieee: 'N. Gögh, P. Thomas, I. Kuznetsova, T. Meier, and I. Varga, “Localization
of excitons in weakly disordered semiconductor structures: A model study,” Annalen
der Physik, vol. 18, no. 12, pp. 905–909, 2010, doi: 10.1002/andp.20095211219.'
mla: 'Gögh, N., et al. “Localization of Excitons in Weakly Disordered Semiconductor
Structures: A Model Study.” Annalen Der Physik, vol. 18, no. 12, 2010,
pp. 905–09, doi:10.1002/andp.20095211219.'
short: N. Gögh, P. Thomas, I. Kuznetsova, T. Meier, I. Varga, Annalen Der Physik
18 (2010) 905–909.
date_created: 2021-09-24T08:06:30Z
date_updated: 2023-04-19T11:13:00Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
doi: 10.1002/andp.20095211219
intvolume: ' 18'
issue: '12'
language:
- iso: eng
page: 905-909
publication: Annalen der Physik
publication_identifier:
issn:
- 0003-3804
- 1521-3889
publication_status: published
status: public
title: 'Localization of excitons in weakly disordered semiconductor structures: A
model study'
type: journal_article
user_id: '49063'
volume: 18
year: '2010'
...