@misc{SchwartzKlossekKittleretal., author = {Schwartz, Bernhard and Klossek, Andre and Kittler, Martin and Oehme, Michael and Kasper, Erich and Schulze, J{\"o}rg}, title = {Electroluminescence of Germanium-LEDs on Silicon}, series = {Physica Status Solidi C}, volume = {11}, journal = {Physica Status Solidi C}, number = {11-12}, doi = {10.1002/pssc.201400056}, pages = {1686 -- 1691}, language = {en} } @inproceedings{ArguirovKittlerOehmeetal., author = {Arguirov, Tzanimir V. and Kittler, Martin and Oehme, Michael and Abrosimov, Nikolay V. and Vyvenko, Oleg F. and Kasper, Erich and Schulze, J{\"o}rg}, title = {Luminescence from Germanium and Germanium on Silicon}, series = {Gettering and defect engineering in semiconductor technology XV, selected papers from the 15th Gettering and Defect Engineering in Semiconductor Technology Conference, September 22 - 27, 2013, Oxford, UK}, booktitle = {Gettering and defect engineering in semiconductor technology XV, selected papers from the 15th Gettering and Defect Engineering in Semiconductor Technology Conference, September 22 - 27, 2013, Oxford, UK}, publisher = {Trans Tech Publ.}, address = {Durnten-Zurich [u.a.]}, issn = {1662-9779}, doi = {10.4028/www.scientific.net/SSP.205-206.383}, pages = {383 -- 393}, language = {en} } @misc{OehmeKosteckiArguirovetal., author = {Oehme, Michael and Kostecki, Konrad and Arguirov, Tzanimir V. and Mussler, Gregor and Ye, Kaiheng and Gollhofer, Martin and Schmid, Marc and Kaschel, Mathias and K{\"o}rner, Roman and Kittler, Martin and Buca, Dan and Kasper, Erich and Schulze, J{\"o}rg}, title = {GeSn Heterojunction LEDs on Si Substrates}, series = {IEEE Photonics Technology Letters}, volume = {26}, journal = {IEEE Photonics Technology Letters}, number = {2}, issn = {1041-1135}, doi = {10.1109/LPT.2013.2291571}, pages = {187 -- 189}, language = {en} } @misc{OehmeWidmannKosteckietal., author = {Oehme, Michael and Widmann, Daniel and Kostecki, Konrad and Zaumseil, Peter and Schwartz, Bernhard and Gollhofer, Martin and K{\"o}rner, Roman and Bechler, Stefan and Kittler, Martin and Kasper, Erich and Schulze, J{\"o}rg}, title = {GeSn/Ge Multi Quantum Well Photodetectors on Si Substrates}, series = {Optics Letters}, volume = {39}, journal = {Optics Letters}, number = {16}, issn = {1539-4794}, doi = {10.1364/OL.39.004711}, pages = {4711 -- 4714}, language = {en} } @misc{SchwartzArguirovKittleretal., author = {Schwartz, Bernhard and Arguirov, Tzanimir V. and Kittler, Martin and Oehme, Michael and Kostecki, Konrad and Kasper, Erich and Schulze, J{\"o}rg}, title = {Comparison of EL emitted by LEDs on Si substrates containing Ge and Ge/GeSn MQW as active layers}, series = {Silicon Photonics X, 9-12 February 2015, San Francisco, California, United States}, journal = {Silicon Photonics X, 9-12 February 2015, San Francisco, California, United States}, publisher = {International Society for Optics and Photonics}, doi = {10.1117/12.2080816}, language = {en} } @misc{SchwartzOehmeKosteckietal., author = {Schwartz, Bernhard and Oehme, Michael and Kostecki, Konrad and Widmann, Daniel and Gollhofer, Martin and K{\"o}rner, Roman and Bechler, Stefan and Fischer, Inga Anita and Wendav, Torsten and Kasper, Erich and Schulze, J{\"o}rg and Kittler, Martin}, title = {Electroluminescence of GeSn/Ge MQW LEDs on Si substrate}, series = {Optics Letters}, volume = {40}, journal = {Optics Letters}, number = {13}, doi = {10.1364/OL40.003209}, pages = {3209 -- 3212}, language = {en} } @misc{OehmeGollhoferKosteckietal., author = {Oehme, Michael and Gollhofer, Martin and Kostecki, Konrad and K{\"o}rner, Roman and Bechler, Stefan and Widmann, Daniel and Aguirov, Tzanimir and Kittler, Martin and Schulze, J{\"o}rg}, title = {Ge and GeSn Light Emitters on Si}, series = {Solid State Phenomena}, volume = {242}, journal = {Solid State Phenomena}, issn = {1012-0394}, doi = {10.4028/www.scientific.net/SSP.242.353}, pages = {353 -- 360}, language = {en} } @misc{KoernerSchwarzFischeretal., author = {K{\"o}rner, Roman and Schwarz, Daniel and Fischer, Inga Anita and Augel, Lion and Bechler, Stefan and H{\"a}nel, Linda A. and Kern, Michael and Oehme, Michael and Rolseth, Erlend Granbo and Schwartz, Bernhard and Weißhaupt, David and Zhang, Wogong and Schulze, J{\"o}rg}, title = {The Zener-Emitter: A Novel Superluminescent Ge Optical Waveguide-Amplifier with 4.7 dB Gain at 92 mA Based on Free-Carrier Modulation by Drect Zener Tunneling Monolithically Integrated on Si}, series = {2016 IEEE International Electronic Devices Meeting (IEDM), 3-7 Dec. 2016}, journal = {2016 IEEE International Electronic Devices Meeting (IEDM), 3-7 Dec. 2016}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5090-3901-2}, pages = {22.5.1 -- 22.5.4}, language = {en} } @inproceedings{SchwartzOehmeKoerneretal., author = {Schwartz, Bernhard and Oehme, Michael and K{\"o}rner, Roman and Bechler, Stefan and Schulze, J{\"o}rg and Kittler, Martin}, title = {Luminescence of strained Ge on GeSn virtual substrate grown on Si (001)}, series = {Silicon Photonics XII, 30 January-1 February 2017, San Francisco, California, United States}, booktitle = {Silicon Photonics XII, 30 January-1 February 2017, San Francisco, California, United States}, publisher = {SPIE}, address = {Bellingham, Washington}, isbn = {978-1-5106-0657-9}, doi = {10.1117/12.2249564}, pages = {7}, language = {en} } @misc{BochAllanBirkhoferetal., author = {Boch, Steffen and Allan, Eric and Birkhofer, Klaus and Bossdorf, Oliver and Bl{\"u}thgen, Nico and Christ-Breulmann, Sabina and Diek{\"o}tter, Tim and Dormann, Carsten F. and Gossner, Martin M. and Hallmann, Christine and Hemp, Andreas and H{\"o}lzel, Norbert and Jung, Kirsten and Klaus, Valentin H. and Klein, Alexandra M. and Kleinebecker, Till and Lange, Markus and M{\"u}ller, J{\"o}rg and Nacke, Heiko and Prati, Daniel and Renner, Swen C. and Rothenw{\"o}hrer, Christoph and Schall, Peter and Schulze, Ernst-Detlef and Socher, Stephanie A. and Tscharntke, Teja and T{\"u}rke, Manfred and Weiner, Christiane N. and Weisser, Wolfgang W. and Westphal, Catrin and Wolters, Volkmar and Wubet, Tesfaye and Fischer, Markus}, title = {Extensive und j{\"a}hrlich wechselnde Nutzungsintensit{\"a}t f{\"o}rdert den Artenreichtum im Gr{\"u}nland}, series = {ANLIEGEN NATUR}, volume = {38}, journal = {ANLIEGEN NATUR}, number = {1}, issn = {1864-0729}, pages = {86 -- 95}, language = {de} } @misc{SchlipfMartinStchakovskyetal., author = {Schlipf, Jon and Martin, Elena and Stchakovsky, Michel and Benedetti, Alessandro and Fischer, Inga Anita and Schulze, J{\"o}rg and Chiussi, Stefano}, title = {Ellipsometric analysis of concentration gradients induced in semiconductor crystals by pulsed laser induced epitaxy}, series = {Journal of Vacuum Science \& Technology B}, volume = {37}, journal = {Journal of Vacuum Science \& Technology B}, number = {6}, issn = {2166-2754}, doi = {10.1116/1.5122777}, language = {en} } @misc{FunkKernWeisshauptetal., author = {Funk, Hannes S. and Kern, Michael and Weisshaupt, David and S{\"u}rgers, Christoph and Fischer, Inga Anita and Oehme, Michael and Slageren, Joris van and Schulze, J{\"o}rg}, title = {Magnetic Characterization of a Mn Based Ferromagnet on SixGe(1-x-y)Sny with High Sn Content}, series = {ECS Transactions}, volume = {93}, journal = {ECS Transactions}, number = {1}, issn = {1938-5862}, doi = {10.1149/09301.0101ecst}, pages = {101 -- 104}, language = {en} } @misc{FischerAugelBerkmannetal., author = {Fischer, Inga Anita and Augel, Lion and Berkmann, Fritz and Kawaguchi, Yuma and Schlipf, Jon and Schulze, J{\"o}rg}, title = {Plasmonics-Integrated Ge PIN-Photodetectors}, series = {ECS Transactions}, volume = {93}, journal = {ECS Transactions}, number = {1}, issn = {1938-5862}, doi = {10.1149/09301.0041ecst}, pages = {41 -- 44}, language = {en} } @misc{FischerClausenSchwarzetal., author = {Fischer, Inga Anita and Clausen, Caterina J. and Schwarz, Daniel and Zaumseil, Peter and Capellini, Giovanni and Virgilio, Michele and Da Silva Figueira, Maria Cecilia and Birner, Stefan and Koelling, Sebastian and Koenraad, Paul M. and Huang, Michael R. S. and Koch, Christoph T. and Wendav, Torsten and Busch, Kurt and Schulze, J{\"o}rg}, title = {Composition analysis and transition energies of ultrathin Sn-rich GeSn quantum wells}, series = {Physical Review Materials}, volume = {4}, journal = {Physical Review Materials}, number = {2}, issn = {2475-9953}, doi = {10.1103/PhysRevMaterials.4.024601}, pages = {10}, language = {en} } @misc{SchlykowManganelliRoemeretal., author = {Schlykow, Viktoria and Manganelli, Constanza Lucia and R{\"o}mer, Friedhard and Clausen, Caterina J. and Augel, Lion and Schulze, J{\"o}rg and Katzer, Jens and Schubert, Michael Andreas and Witzigmann, Bernd and Schroeder, Thomas and Capellini, Giovanni and Fischer, Inga Anita}, title = {Ge(Sn) nano-island/Si heterostructure photodetectors with plasmonic antennas}, series = {Nanotechnology}, volume = {31}, journal = {Nanotechnology}, number = {34}, issn = {1361-6528}, doi = {10.1088/1361-6528/ab91ef}, pages = {11}, language = {en} } @misc{AugelFischerGollhoferetal., author = {Augel, Lion and Fischer, Inga Anita and Gollhofer, Martin and Oehme, Michael and Schulze, J{\"o}rg}, title = {Comparing Fourier transform infrared spectroscopy results with photocurrent measurements for Ge-on-Si PIN photodetectors with and without Al nanoantennas}, series = {Journal of Applied Physics}, volume = {128}, journal = {Journal of Applied Physics}, number = {1}, issn = {1089-7550}, doi = {10.1063/5.0012279}, pages = {013105-1 -- 013105-8}, language = {en} } @techreport{MensingAndersFanelliFalckeetal., author = {Mensing, Klaus and Anders, Ulrike and Fanelli-Falcke, J{\"o}rg and Hauschild, Arndt and L{\"o}wer, Markus and Mansfeld, Ulrike and Nußbaum, Jens and Ribbeck-Lampel, Juliane and Rohr, G{\"o}tz von and Schulze, Juana and Sondermann, Martin and Wiellowics, Kathrin}, title = {Zukunft der (Stadt-)Zentren ohne Handel? Neue Impulse und Nutzungen f{\"u}r Zentren mit Zukunft}, pages = {24}, abstract = {Wenn die Leitfunktion des Handels in den Zentren von Klein- und Mittelst{\"a}dten sowie Stadtteilzentren gr{\"o}ßerer St{\"a}dte abnimmt, steht die r{\"a}umliche Planung in Bezug auf die (Weiter-)Entwicklung urbaner Zentren vor neuen Herausforderungen. Ausgehend von aktuellen Trends der Zentrenentwicklung werden Konsequenzen f{\"u}r alte und neue Nutzungen aufgezeigt und Handlungsempfehlungen entwickelt: Es bedarf Transformationsstrategien, die im Kern eine neue multifunktionale Nutzungsmischung durch Ansiedlung erg{\"a}nzender, frequenzbringender Nutzungen neben dem Handel beinhalten, um lebendige und attraktive (Stadt-)Zentren zu erhalten. Die {\"o}ffentlichen R{\"a}ume als „gute Stube" sind um nicht kommerzielle Aufenthaltsqualit{\"a}ten aufzuwerten, um die Identifikation der Einwohnerinnen und Einwohner mit „ihrem" Zentrum zu f{\"o}rdern. Die Zentrenentwicklung wird als eine Gemeinschaftsaufgabe gesehen, an der unter Federf{\"u}hrung von Stadtpolitik und -verwaltung die verschiedenen Akteursgruppen aktiv mitwirken. Zudem werden Instrumente der Zentrentransformation vorgestellt, mit denen schnell, flexibel und situationsangepasst zuk{\"u}nftige Entwicklungen gestaltet werden k{\"o}nnen.}, language = {de} } @misc{WeisshauptFunkKernetal., author = {Weißhaupt, David and Funk, Hannes S. and Kern, Michal and Dettling, Marco M. and Schwarz, Daniel and Oehme, Michael and S{\"u}rgers, Christoph and Slageren, Joris van and Fischer, Inga Anita and Schulze, J{\"o}rg}, title = {Weak localization and weak antilocalization in doped Ge1-ySny layers with up to 8\% Sn}, series = {Journal of Physics: Condensed Matter}, volume = {33}, journal = {Journal of Physics: Condensed Matter}, number = {8}, issn = {1361-648X}, doi = {10.1088/1361-648X/abcb68}, pages = {8}, language = {en} } @misc{SchlipfTetznerSpiritoetal., author = {Schlipf, Jon and Tetzner, Henriette and Spirito, Davide and Manganelli, Constanza Lucia and Capellini, Giovanni and Huang, Michael R. S. and Koch, Christoph T. and Clausen, Caterina J. and Elsayed, Ahmed and Schulze, J{\"o}rg and Fischer, Inga Anita}, title = {Raman shifts in MBE-grown SixGe1 - x - ySny alloys with large Si content}, series = {Journal of Raman Spectroscopy}, journal = {Journal of Raman Spectroscopy}, issn = {1097-4555}, doi = {10.1002/jrs.6098}, pages = {9}, language = {en} } @misc{AugelSchlipfBullertetal., author = {Augel, Lion and Schlipf, Jon and Bullert, Sergej and B{\"u}rzele, Sebastian and Schulze, J{\"o}rg and Fischer, Inga Anita}, title = {Photonic-plasmonic mode coupling in nanopillar Ge-on-Si PIN photodiodes}, series = {Scientific Reports}, journal = {Scientific Reports}, number = {11}, issn = {2045-2322}, doi = {10.1038/s41598-021-85012-z}, pages = {9}, abstract = {Incorporating group IV photonic nanostructures within active top-illuminated photonic devices often requires light-transmissive contact schemes. In this context, plasmonic nanoapertures in metallic films can not only be realized using CMOS compatible metals and processes, they can also serve to influence the wavelength-dependent device responsivities. Here, we investigate crescent-shaped nanoapertures in close proximity to Ge-on-Si PIN nanopillar photodetectors both in simulation and experiment. In our geometries, the absorption within the devices is mainly shaped by the absorption characteristics of the vertical semiconductor nanopillar structures (leaky waveguide modes). The plasmonic resonances can be used to influence how incident light couples into the leaky modes within the nanopillars. Our results can serve as a starting point to selectively tune our device geometries for applications in spectroscopy or refractive index sensing.}, language = {en} } @misc{BergmannAyasseSchlipfetal., author = {Bergmann, Fritz and Ayasse, Markus and Schlipf, Jon and M{\"o}rz, Florian and Weißhaupt, David and Oehme, Michael and Prucnal, Slawomir and Kawaguchi, Yuma and Schwarz, Daniel and Fischer, Inga Anita and Schulze, J{\"o}rg}, title = {Plasmonic gratings from highly doped Ge1-ySny films on Si}, series = {Journal of Physics D: Applied Physics}, volume = {54}, journal = {Journal of Physics D: Applied Physics}, number = {44}, issn = {1361-6463}, language = {en} } @misc{WeisshauptFunkSuergersetal., author = {Weißhaupt, David and Funk, Hannes S. and S{\"u}rgers, Christoph and Fischer, Gerda and Oehme, Michael and Schwarz, Daniel and Fischer, Inga Anita and Slageren, Joris van and Schulze, J{\"o}rg}, title = {Formation of Mn5Ge3 on a Recess-Etched Ge (111) Quantum-Well Structure for Semiconductor Spintronics}, series = {44th International Convention on Information, Communication and Electronic Technology, MIPRO 2021, Opatija, Croatia, September 27 - Oct. 1, 2021}, journal = {44th International Convention on Information, Communication and Electronic Technology, MIPRO 2021, Opatija, Croatia, September 27 - Oct. 1, 2021}, publisher = {Piscataway}, address = {IEEE}, isbn = {978-1-6654-4761-4}, issn = {978-953-233-101-1}, doi = {10.23919/MIPRO52101.2021.9596924.}, pages = {45 -- 49}, language = {en} } @misc{BerkmannAyasseMoerzetal., author = {Berkmann, Fritz and Ayasse, Markus and M{\"o}rz, Florian and Fischer, Inga Anita and Schulze, J{\"o}rg}, title = {Titanium and Nickel as alternative materials for mid Infrared Plasmonic}, series = {44th International Convention on Information, Communication and Electronic Technology, MIPRO 2021, Opatija, Croatia, September 27 - Oct. 1, 2021}, journal = {44th International Convention on Information, Communication and Electronic Technology, MIPRO 2021, Opatija, Croatia, September 27 - Oct. 1, 2021}, publisher = {Piscataway}, address = {IEEE}, isbn = {978-953-233-101-1}, doi = {10.23919/MIPRO52101.2021.9597155}, pages = {36 -- 39}, language = {en} } @misc{FunkKernWeisshauptetal., author = {Funk, Hannes S. and Kern, Michael and Weißhaupt, David and S{\"u}rgers, Christoph and Fischer, Inga Anita and Oehme, Michael and Slageren, Joris van and Schulze, J{\"o}rg}, title = {Composition and magnetic properties of thin films grown by interdiffusion of Mn and Sn-Rich, Ge lattice matched SixGe1-x-ySny layers}, series = {Journal of Magnetism and Magnetic Materials}, volume = {546}, journal = {Journal of Magnetism and Magnetic Materials}, issn = {0304-8853}, doi = {10.1016/j.jmmm.2021.168731.}, pages = {8}, language = {en} } @misc{ElogailBerkmannClausenetal., author = {Elogail, Yasmine and Berkmann, Fritz and Clausen, Caterina J. and Fischer, Inga Anita and H{\"a}nel, Linda A. and Schwarz, Daniel and Schulze, J{\"o}rg}, title = {Investigation of Ge-Based P-Channel Planar-Doped Barrier FETs integrated on Si}, series = {Microelectronics Journal}, volume = {123}, journal = {Microelectronics Journal}, issn = {1879-2391}, doi = {10.1016/j.mejo.2022.105404}, pages = {11}, language = {en} } @misc{XieBirowskaFunketal., author = {Xie, Yufang and Birowska, Magdalena and Funk, Hannes S. and Fischer, Inga Anita and Schwarz, Daniel and Schulze, J{\"o}rg and Zeng, Yu-Jia and Helm, Manfred and Zhou, Shengqiang and Prucnal, Slawomir}, title = {Tuning of Curie temperature in Mn5Ge3 films}, series = {Journal of Applied Physics}, volume = {131}, journal = {Journal of Applied Physics}, issn = {1089-7550}, doi = {10.1063/5.0066717}, pages = {105102-1 -- 105102-8}, language = {en} } @misc{BerkmannAugelHacketal., author = {Berkmann, Fritz and Augel, Lion and Hack, Michael and Kawaguchi, Yuma and Weißhaupt, David and Fischer, Inga Anita and Schulze, J{\"o}rg}, title = {Optimization of fully integrated Al nanohole array-based refractive index sensors for use with a LED light source Fritz Berkmann}, series = {IEEE Photonics Journal}, volume = {14}, journal = {IEEE Photonics Journal}, number = {3}, issn = {1943-0655}, doi = {10.1109/JPHOT.2022.3177354}, pages = {1 -- 8}, language = {en} } @misc{WeisshauptSuergersBloosetal., author = {Weißhaupt, David and S{\"u}rgers, Christoph and Bloos, Dominik and Funk, Hannes Simon and Oehme, Michael and Fischer, Gerda and Schubert, Markus Andreas and Wenger, Christian and van Slageren, Joris and Fischer, Inga Anita and Schulze, J{\"o}rg}, title = {Lateral Mn5Ge3 spin-valve in contact with a high-mobility Ge two-dimensional hole gas}, series = {Semiconductor Science and Technology}, volume = {39}, journal = {Semiconductor Science and Technology}, number = {12}, publisher = {IOP Publishing}, issn = {0268-1242}, doi = {10.1088/1361-6641/ad8d06}, pages = {1 -- 10}, abstract = {Abstract Ge two-dimensional hole gases (2DHG) in strained modulation-doped quantum-wells represent a promising material platform for future spintronic applications due to their excellent spin transport properties and the theoretical possibility of efficient spin manipulation. Due to the continuous development of epitaxial growth recipes extreme high hole mobilities and low effective masses can be achieved, promising an efficient spin transport. Furthermore, the Ge 2DHG can be integrated in the well-established industrial complementary metal-oxide-semiconductor (CMOS) devices technology. However, efficient electrical spin injection into a Ge 2DHG—an essential prerequisite for the realization of spintronic devices—has not yet been demonstrated. In this work, we report the fabrication and low-temperature magnetoresistance (MR) measurements of a laterally structured Mn5Ge3/Ge 2DHG/ Mn5Ge3 device. The ferromagnetic Mn5Ge3 contacts are grown directly into the Ge quantum well by means of an interdiffusion process with a spacing of approximately 130 nm, forming a direct electrical contact between the ferromagnetic metal and the Ge 2DHG. Here, we report for the first time a clear MR signal for temperatures below 13 K possibly arising from successful spin injection into the high mobility Ge 2DHG. The results represent a step forward toward the realization of CMOS compatible spintronic devices based on a 2DHG.}, language = {en} } @misc{BerkmannSteuerGanssetal., author = {Berkmann, Fritz and Steuer, Oliver and Ganss, Fabian and Prucnal, Slawomir and Schwarz, Daniel and Fischer, Inga Anita and Schulze, J{\"o}rg}, title = {Sharp MIR plasmonic modes in gratings made of heavily doped pulsed laser-melted Ge1-xSnx}, series = {Optical Materials Express}, volume = {13}, journal = {Optical Materials Express}, number = {3}, issn = {2159-3930}, doi = {10.1364/OME.479637}, pages = {752 -- 763}, language = {en} } @misc{WeisshauptFunkOehmeetal., author = {Weißhaupt, David and Funk, Hannes S. and Oehme, Michael and Bloos, Dominik and Berkmann, Fritz and Seidel, Lukas and Fischer, Inga Anita and Schulze, J{\"o}rg}, title = {High mobility Ge 2DHG based MODFETs for low-temperature applications}, series = {Semiconductor Science and Technology}, volume = {38}, journal = {Semiconductor Science and Technology}, number = {3}, issn = {1361-6641}, doi = {10.1088/1361-6641/acb22f}, language = {en} }