001053014 001__ 1053014
001053014 005__ 20260202125355.0
001053014 037__ $$aFZJ-2026-01358
001053014 041__ $$aEnglish
001053014 1001_ $$0P:(DE-Juel1)128634$$aSchäpers, Thomas$$b0$$eCorresponding author$$ufzj
001053014 1112_ $$a10th International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies$$cFukui$$d2025-06-11 - 2025-06-14$$gEM-Nano$$wJapan
001053014 245__ $$aSuperconductive coupling and diode effect in topological insulator-based multi-terminal Josephson junctions
001053014 260__ $$c2025
001053014 3367_ $$033$$2EndNote$$aConference Paper
001053014 3367_ $$2DataCite$$aOther
001053014 3367_ $$2BibTeX$$aINPROCEEDINGS
001053014 3367_ $$2DRIVER$$aconferenceObject
001053014 3367_ $$2ORCID$$aLECTURE_SPEECH
001053014 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1770021242_21302$$xInvited
001053014 520__ $$aThe combination of s-type superconductors with three-dimensional topological insulators creates a promising platform for fault-tolerant topological quantum circuits based on Majorana braiding. The backbone of the braiding mechanism is a three-terminal Josephson junction. Implementing this concept requires a deeper understanding of the underlying mechanisms in topological insulator nanoribbon networks equipped with superconducting electrodes. The samples for our experiments are fabricated by a combination of selective-area growth of the topological insulator and shadow mask evaporation of the superconductor. As a first step, we investigate nanoribbon kinks and T-junctions of the topological insulator. In kink structures, a π-periodic change of the conductance is observed as a function of the angle of an in-plane magnetic field. We attribute this phenomenon to an orbital effect leading to an alignment or misalignment of the phase-coherent states on the lower and upper surfaces of the kink branches depending on the magnetic field orientation. The experimental results are supported by a theoretical analysis based on a surface Rashba-Dirac model and tight-binding simulations. As a next step, the transport properties of topological insulator-based three-terminal Josephson junctions are measured and the cross-coupling of the junctions is analyzed. Under the application of an out-of-plane magnetic field, a multi-terminal geometry induced diode effect is observed.Work done in collaboration with: Gerrit Behner, Abdur Rehman Jalil, Kristof Moors, Michael Schleenvoigt, Jonas Kölzer, Erik Zimmermann, Daniel Rosenbach, Alina Rupp, Gregor Mussler, Peter Schüffelgen, Hans Lüth, Detlev Grützmacher.
001053014 536__ $$0G:(DE-HGF)POF4-5222$$a5222 - Exploratory Qubits (POF4-522)$$cPOF4-522$$fPOF IV$$x0
001053014 536__ $$0G:(GEPRIS)390534769$$aDFG project G:(GEPRIS)390534769 - EXC 2004: Materie und Licht für Quanteninformation (ML4Q) (390534769)$$c390534769$$x1
001053014 536__ $$0G:(GEPRIS)491798118$$aDFG project G:(GEPRIS)491798118 - Magnetische topologische Isolatoren für robuste Majorana Zustände (491798118)$$c491798118$$x2
001053014 65027 $$0V:(DE-MLZ)SciArea-120$$2V:(DE-HGF)$$aCondensed Matter Physics$$x0
001053014 65017 $$0V:(DE-MLZ)GC-120-2016$$2V:(DE-HGF)$$aInformation and Communication$$x0
001053014 8564_ $$uhttps://em-nano2025.jp/
001053014 909CO $$ooai:juser.fz-juelich.de:1053014$$pVDB
001053014 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)128634$$aForschungszentrum Jülich$$b0$$kFZJ
001053014 9131_ $$0G:(DE-HGF)POF4-522$$1G:(DE-HGF)POF4-520$$2G:(DE-HGF)POF4-500$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF4-5222$$aDE-HGF$$bKey Technologies$$lNatural, Artificial and Cognitive Information Processing$$vQuantum Computing$$x0
001053014 920__ $$lyes
001053014 9201_ $$0I:(DE-Juel1)PGI-9-20110106$$kPGI-9$$lHalbleiter-Nanoelektronik$$x0
001053014 980__ $$aconf
001053014 980__ $$aVDB
001053014 980__ $$aI:(DE-Juel1)PGI-9-20110106
001053014 980__ $$aUNRESTRICTED