@inproceedings{23982,
  author       = {{Weiß, Deborah and Schramm, Britta and Kullmer, Gunter}},
  location     = {{Darmstadt}},
  title        = {{{Experimental and numerical preliminary investigations of the base material and preformed components regarding fatigue crack growth in joined structures}}},
  year         = {{2020}},
}

@phdthesis{42068,
  author       = {{Gense, Alexander}},
  title        = {{{Mechatronischer Entwurf eines geregelten Federungssystems für mittelschwere gepanzerte Kettenfahrzeuge}}},
  year         = {{2020}},
}

@phdthesis{42067,
  author       = {{Bertelsmeier, Fabian}},
  title        = {{{Produkttolerante Automation zellenbasierter Fertigungssysteme}}},
  year         = {{2020}},
}

@article{25901,
  abstract     = {{Thermally stabilized and subsequently carbonized nanofibers are a promising material for many technical applications in fields such as tissue engineering or energy storage. They can be obtained from a variety of different polymer precursors via electrospinning. While some methods have been tested for post-carbonization doping of nanofibers with the desired ingredients, very little is known about carbonization of blend nanofibers from two or more polymeric precursors. In this paper, we report on the preparation, thermal treatment and resulting properties of poly(acrylonitrile) (PAN)/poly(vinylidene fluoride) (PVDF) blend nanofibers produced by wire-based electrospinning of binary polymer solutions. Using a wide variety of spectroscopic, microscopic and thermal characterization methods, the chemical and morphological transition during oxidative stabilization (280 °C) and incipient carbonization (500 °C) was thoroughly investigated. Both PAN and PVDF precursor polymers were detected and analyzed qualitatively and quantitatively during all stages of thermal treatment. Compared to pure PAN nanofibers, the blend nanofibers showed increased fiber diameters, strong reduction of undesired morphological changes during oxidative stabilization and increased conductivity after carbonization.}},
  author       = {{Wortmann, Martin and Frese, Natalie and Mamun, Al and Trabelsi, Marah and Keil, Waldemar and Büker, Björn and Javed, Ali and Tiemann, Michael and Moritzer, Elmar and Ehrmann, Andrea and Hütten, Andreas and Schmidt, Claudia and Gölzhäuser, Armin and Hüsgen, Bruno and Sabantina, Lilia}},
  issn         = {{2079-4991}},
  journal      = {{Nanomaterials}},
  title        = {{{Chemical and Morphological Transition of Poly(acrylonitrile)/Poly(vinylidene Fluoride) Blend Nanofibers during Oxidative Stabilization and Incipient Carbonization}}},
  doi          = {{10.3390/nano10061210}},
  year         = {{2020}},
}

@article{17067,
  author       = {{Speiser, Eugen and Esser, Norbert and Halbig, Benedikt and Geurts, Jean and Schmidt, Wolf Gero and Sanna, Simone}},
  issn         = {{0167-5729}},
  journal      = {{Surface Science Reports}},
  number       = {{1}},
  title        = {{{Vibrational Raman spectroscopy on adsorbate-induced low-dimensional surface structures}}},
  doi          = {{10.1016/j.surfrep.2020.100480}},
  volume       = {{75}},
  year         = {{2020}},
}

@article{20582,
  author       = {{Berger, Bernd and Schmidt, Daniel and Ma, Xuekai and Schumacher, Stefan and Schneider, Christian and Höfling, Sven and Assmann, Marc}},
  journal      = {{Physical Review B}},
  number       = {{24}},
  pages        = {{245309}},
  publisher    = {{American Physical Society}},
  title        = {{{Formation dynamics of exciton-polariton vortices created by nonresonant annular pumping}}},
  doi          = {{10.1103/PhysRevB.101.245309}},
  volume       = {{101}},
  year         = {{2020}},
}

@article{19190,
  abstract     = {{Polarons in dielectric crystals play a crucial role for applications in integrated electronics and optoelectronics. In this work, we use density-functional theory and Green's function methods to explore the microscopic structure and spectroscopic signatures of electron polarons in lithium niobate (LiNbO3). Total-energy calculations and the comparison of calculated electron paramagnetic resonance data with available measurements reveal the formation of bound 
polarons at Nb_Li antisite defects with a quasi-Jahn-Teller distorted, tilted configuration. The defect-formation energies further indicate that (bi)polarons may form not only at 
Nb_Li antisites but also at structures where the antisite Nb atom moves into a neighboring empty oxygen octahedron. Based on these structure models, and on the calculated charge-transition levels and potential-energy barriers, we propose two mechanisms for the optical and thermal splitting of bipolarons, which provide a natural explanation for the reported two-path recombination of bipolarons. Optical-response calculations based on the Bethe-Salpeter equation, in combination with available experimental data and new measurements of the optical absorption spectrum, further corroborate the geometries proposed here for free and defect-bound (bi)polarons.}},
  author       = {{Schmidt, Falko and Kozub, Agnieszka L. and Biktagirov, Timur and Eigner, Christof and Silberhorn, Christine and Schindlmayr, Arno and Schmidt, Wolf Gero and Gerstmann, Uwe}},
  issn         = {{2643-1564}},
  journal      = {{Physical Review Research}},
  number       = {{4}},
  publisher    = {{American Physical Society}},
  title        = {{{Free and defect-bound (bi)polarons in LiNbO3: Atomic structure and spectroscopic signatures from ab initio calculations}}},
  doi          = {{10.1103/PhysRevResearch.2.043002}},
  volume       = {{2}},
  year         = {{2020}},
}

@article{40444,
  author       = {{von Bardeleben, H. J. and Rauls, E. and Gerstmann, Uwe}},
  issn         = {{2469-9950}},
  journal      = {{Physical Review B}},
  number       = {{18}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{Carbon vacancy-related centers in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mn>3</mml:mn><mml:mi>C</mml:mi></mml:math>-silicon carbide: Negative-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>U</mml:mi></mml:math> properties and structural transformation}}},
  doi          = {{10.1103/physrevb.101.184108}},
  volume       = {{101}},
  year         = {{2020}},
}

@inproceedings{20770,
  author       = {{Hannes, Wolf-Rüdiger and Meier, Torsten}},
  booktitle    = {{Ultrafast Phenomena and Nanophotonics XXIV}},
  editor       = {{Betz, Markus and Elezzabi, Abdulhakem Y.}},
  isbn         = {{9781510633193}},
  pages        = {{112780S}},
  title        = {{{k.p-based multiband simulations of non-degenerate two-photon absorption in bulk GaAs}}},
  doi          = {{10.1117/12.2545924}},
  volume       = {{11278}},
  year         = {{2020}},
}

@article{20563,
  author       = {{Hannes, W.-R. and Trautmann, Alexander and Stein, M. and Schäfer, F. and Koch, M. and Meier, Torsten}},
  journal      = {{Physical Review B}},
  number       = {{7}},
  pages        = {{075203}},
  publisher    = {{American Physical Society}},
  title        = {{{Strongly nonresonant four-wave mixing in semiconductors}}},
  doi          = {{10.1103/PhysRevB.101.075203}},
  volume       = {{101}},
  year         = {{2020}},
}

@article{20772,
  author       = {{Song, Xiaohong and Yang, Shidong and Zuo, Ruixin and Meier, Torsten and Yang, Weifeng}},
  issn         = {{2469-9926}},
  journal      = {{Physical Review A}},
  title        = {{{Enhanced high-order harmonic generation in semiconductors by excitation with multicolor pulses}}},
  doi          = {{10.1103/physreva.101.033410}},
  volume       = {{101}},
  year         = {{2020}},
}

@article{20682,
  author       = {{Bocchini, Adriana and Eigner, Christof and Silberhorn, Christine and Schmidt, Wolf Gero and Gerstmann, Uwe}},
  journal      = {{Phys. Rev. Materials}},
  pages        = {{124402}},
  publisher    = {{American Physical Society}},
  title        = {{{Understanding gray track formation in KTP: Ti^3+ centers studied from first principles}}},
  doi          = {{10.1103/PhysRevMaterials.4.124402}},
  volume       = {{4}},
  year         = {{2020}},
}

@article{16859,
  author       = {{Martin, Sven and Camberg, Alan A. and Tröster, Thomas}},
  issn         = {{2351-9789}},
  journal      = {{Procedia Manufacturing}},
  location     = {{virtually}},
  pages        = {{419--424}},
  publisher    = {{Elsevier}},
  title        = {{{Probability Distribution of Joint Point Loadings in Car Body Structures under Global Bending and Torsion}}},
  doi          = {{10.1016/j.promfg.2020.04.324}},
  year         = {{2020}},
}

@inproceedings{22965,
  author       = {{Rozo Vasquez, Julian and Arian, Bahman and Riepold, Markus and Homberg, Werner and Trächtler, Ansgar and Walther, Frank}},
  booktitle    = {{ 54. Metallographie-Tagung}},
  pages        = {{75--81}},
  title        = {{{Microstructural investigation on phase transformation during flow forming of the metastable austenite AISI 304 }}},
  year         = {{2020}},
}

@article{30713,
  author       = {{Rostek, Tim and Wiens, Eugen and Homberg, Werner}},
  journal      = {{Procedia Manufacturing}},
  pages        = {{395--399}},
  publisher    = {{ Elsevier Ltd}},
  title        = {{{Joining with Versatile Friction-Spun Joint Connectors}}},
  doi          = {{10.1016/j.promfg.2020.04.313}},
  volume       = {{47}},
  year         = {{2020}},
}

@article{20580,
  author       = {{Ma, Xuekai and Berger, B and Aßmann, M and Driben, R and Meier, Torsten and Schneider, C and Höfling, S and Schumacher, Stefan}},
  issn         = {{2041-1723}},
  journal      = {{Nature Communications}},
  number       = {{1}},
  pages        = {{897}},
  title        = {{{Realization of all-optical vortex switching in exciton-polariton condensates}}},
  doi          = {{10.1038/s41467-020-14702-5}},
  volume       = {{11}},
  year         = {{2020}},
}

@article{20584,
  author       = {{Ren, J and Liao, Q and Huang, H and Li, Y and Gao, T and Ma, Xuekai and Schumacher, Stefan and Yao, J and Bai, S and Fu, H}},
  issn         = {{1530-6992}},
  journal      = {{Nano Letters}},
  number       = {{10}},
  pages        = {{7550--7557}},
  title        = {{{Efficient Bosonic Condensation of Exciton Polaritons in an H-Aggregate Organic Single-Crystal Microcavity.}}},
  doi          = {{10.1021/acs.nanolett.0c03009}},
  volume       = {{20}},
  year         = {{2020}},
}

@article{20585,
  author       = {{Ma, Xuekai and Kartashov, YV and Ferrando, A and Schumacher, Stefan}},
  issn         = {{0146-9592}},
  journal      = {{Optics Letters}},
  number       = {{19}},
  pages        = {{5311--5314}},
  title        = {{{Topological edge states of nonequilibrium polaritons in hollow honeycomb arrays.}}},
  doi          = {{10.1364/ol.405844}},
  volume       = {{45}},
  year         = {{2020}},
}

@article{20587,
  author       = {{Barkhausen, F and Schumacher, Stefan and Ma, Xuekai}},
  issn         = {{0146-9592}},
  journal      = {{Optics Letters}},
  number       = {{5}},
  pages        = {{1192--1195}},
  title        = {{{Multistable circular currents of polariton condensates trapped in ring potentials.}}},
  doi          = {{10.1364/ol.386250}},
  volume       = {{45}},
  year         = {{2020}},
}

@article{20586,
  author       = {{Ma, Xuekai and Kartashov, YV and Kavokin, A and Schumacher, Stefan}},
  issn         = {{0146-9592}},
  journal      = {{Optics Letters}},
  number       = {{20}},
  pages        = {{5700--5703}},
  title        = {{{Chiral condensates in a polariton hexagonal ring.}}},
  doi          = {{10.1364/ol.405400}},
  volume       = {{45}},
  year         = {{2020}},
}