001015294 001__ 1015294
001015294 005__ 20231006201837.0
001015294 037__ $$aFZJ-2023-03640
001015294 041__ $$aEnglish
001015294 1001_ $$0P:(DE-Juel1)128634$$aSchäpers, Thomas$$b0$$ufzj
001015294 1112_ $$aInstitute Seminar (online)$$cLos Angeles$$d2023-09-22 - 2023-09-22$$wUSA
001015294 245__ $$aPhase-Coherent Transport in Multi-Terminal Topological Insulator-Based Nanostructures$$f2023-09-22 - 
001015294 260__ $$c2023
001015294 3367_ $$033$$2EndNote$$aConference Paper
001015294 3367_ $$2DataCite$$aOther
001015294 3367_ $$2BibTeX$$aINPROCEEDINGS
001015294 3367_ $$2ORCID$$aLECTURE_SPEECH
001015294 3367_ $$0PUB:(DE-HGF)31$$2PUB:(DE-HGF)$$aTalk (non-conference)$$btalk$$mtalk$$s1696588345_16464$$xInvited
001015294 3367_ $$2DINI$$aOther
001015294 500__ $$aThis work was partly funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy - Cluster of Excellence Matter14and Light for Quantum Computing (ML4Q) EXC 2004/1 – 390534769. and by the Bavarian Ministry of Economic Affairs, Regional Development and Energy within Bavaria’s High-Tech Agenda Project "Bausteine für das Quantencomputing auf Basis topologischer Materialien mit experimentellen und theoretischen Ansätzen" (grant allocation no. 07 02/686 58/1/21 1/22 2/23)
001015294 502__ $$cUniversity of Southern California
001015294 520__ $$aNetworks of three-dimensional nanoribbons of topological insulators (TI) in combination with superconducting electrodes are promising building blocks for topoelectronic applications and topological quantum computations. In our approach, these structures are fabricated by a dedicated fabrication method that uses selective-area growth in combination with in-situ shadow evaporation of the superconducting electrodes. On single straight TI nanoribbons and TI ring structures, we have found pronounced Aharonov-Bohm oscillations in magnetoresistance, indicating transport via topologically protected surface states [1,2,3]. In three-terminal TI nanoribbon T- and Y-junctions, a dependence of the current on the in-plane magnetic field has been observed, with the current in the surface states being clearly steered toward a preferred output at different magnetic field orientations. The origin of this steering effect is interpreted in terms of orbital effects in combination with spin-momentum locking [4]. In in-situ prepared superconductor-topological insulator nanoribbon Josephson junctions a pronounced supercurrent was observed [5]. For multi-terminal TI hybrid junction the interplay of the Josephson supercurrent in the different branches is investigated. Here, we found a clear coupling in the supercurrent between the different electrodes.    Work done in collaboration with: D. Rosenbach, J. Kölzer, G. Behner, E. Zimmermann, J. Teller, A. Rupp, J. Karthein, A.R. Jalil, K. Moors, T.W. Schmitt, M. Schleenvoigt, M. Vaßen-Carl, G. Bihlmaier, H. Lüth, G. Mussler, P. Schüffelgen, D. Grützmacher.[1] J. Kölzer, et al., Nanotechnology 31, 325001 (2020).[2] D. Rosenbach, et al., Sci. Post. Phys. Core 5, 17 (2022).[3] G. Behner et al., Nano Letters, 23, 6347 (2023).[4] J. Kölzer, et al., Communications Materials 2, 1 (2021).[5] D. Rosenbach, et al., Science Advances 7, eabf1854 (2021).
001015294 536__ $$0G:(DE-HGF)POF4-5222$$a5222 - Exploratory Qubits (POF4-522)$$cPOF4-522$$fPOF IV$$x0
001015294 65027 $$0V:(DE-MLZ)SciArea-120$$2V:(DE-HGF)$$aCondensed Matter Physics$$x0
001015294 65017 $$0V:(DE-MLZ)GC-120-2016$$2V:(DE-HGF)$$aInformation and Communication$$x0
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001015294 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)128634$$aForschungszentrum Jülich$$b0$$kFZJ
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001015294 9141_ $$y2023
001015294 920__ $$lyes
001015294 9201_ $$0I:(DE-Juel1)PGI-9-20110106$$kPGI-9$$lHalbleiter-Nanoelektronik$$x0
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001015294 980__ $$aUNRESTRICTED