Home > Publications database > Scrutinizing a superconductor-topological insulator interface as a platform for topological superconductivity > print

001     1020362
005     20240226075254.0
037 _ _ |a FZJ-2024-00095
100 1 _ |a Rüssmann, Philipp
|0 P:(DE-Juel1)157882
|b 0
|e Corresponding author
|u fzj
111 2 _ |a APS March Meeting 2023
|c Las Vegas
|d 2023-03-05 - 2023-03-10
|w USA
245 _ _ |a Scrutinizing a superconductor-topological insulator interface as a platform for topological superconductivity
260 _ _ |c 2023
336 7 _ |a Conference Paper
|0 33
|2 EndNote
336 7 _ |a Other
|2 DataCite
336 7 _ |a INPROCEEDINGS
|2 BibTeX
336 7 _ |a conferenceObject
|2 DRIVER
336 7 _ |a LECTURE_SPEECH
|2 ORCID
336 7 _ |a Conference Presentation
|b conf
|m conf
|0 PUB:(DE-HGF)6
|s 1704365966_21370
|2 PUB:(DE-HGF)
|x Other
520 _ _ |a Interfacing a topological insulator (TI) with an s-wave superconductor (SC) is a promising material platform that offers the possibility to realize a topological superconductor through which Majorana-based topologically protected qubits can be engineered. In our computational study of the prototypical SC/TI interface between Nb and Bi2Te3, we identify the benefits and possible bottlenecks of this potential Majorana material platform. Bringing Nb in contact with the TI film induces charge doping from the SC to the TI, which shifts the Fermi level into the TI conduction band. For thick TI films, this results in band bending leading to the population of trivial TI quantum-well states at the interface. In the superconducting state, we uncover that the topological surface state experiences a sizable superconducting gap-opening at the SC/TI interface, which is furthermore robust against fluctuations of the Fermi energy. We also show that the trivial interface state is only marginally proximitized, potentially obstructing the realization of Majorana-based qubits in this material platform.
536 _ _ |a 5211 - Topological Matter (POF4-521)
|0 G:(DE-HGF)POF4-5211
|c POF4-521
|f POF IV
|x 0
536 _ _ |a DFG project 390534769 - EXC 2004: Materie und Licht für Quanteninformation (ML4Q) (390534769)
|0 G:(GEPRIS)390534769
|c 390534769
|x 1
700 1 _ |a Blügel, Stefan
|0 P:(DE-Juel1)130548
|b 1
|u fzj
856 4 _ |u https://meetings.aps.org/Meeting/MAR23/Session/N44.2
856 4 _ |u https://juser.fz-juelich.de/record/1020362/files/talk_APS_LasVegas_PRuessmann.pdf
|y Restricted
856 4 _ |u https://juser.fz-juelich.de/record/1020362/files/talk_APS_LasVegas_PRuessmann.gif?subformat=icon
|x icon
|y Restricted
856 4 _ |u https://juser.fz-juelich.de/record/1020362/files/talk_APS_LasVegas_PRuessmann.jpg?subformat=icon-1440
|x icon-1440
|y Restricted
856 4 _ |u https://juser.fz-juelich.de/record/1020362/files/talk_APS_LasVegas_PRuessmann.jpg?subformat=icon-180
|x icon-180
|y Restricted
856 4 _ |u https://juser.fz-juelich.de/record/1020362/files/talk_APS_LasVegas_PRuessmann.jpg?subformat=icon-640
|x icon-640
|y Restricted
909 C O |o oai:juser.fz-juelich.de:1020362
|p VDB
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 0
|6 P:(DE-Juel1)157882
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 1
|6 P:(DE-Juel1)130548
913 1 _ |a DE-HGF
|b Key Technologies
|l Natural, Artificial and Cognitive Information Processing
|1 G:(DE-HGF)POF4-520
|0 G:(DE-HGF)POF4-521
|3 G:(DE-HGF)POF4
|2 G:(DE-HGF)POF4-500
|4 G:(DE-HGF)POF
|v Quantum Materials
|9 G:(DE-HGF)POF4-5211
|x 0
914 1 _ |y 2023
920 _ _ |l yes
920 1 _ |0 I:(DE-Juel1)IAS-1-20090406
|k IAS-1
|l Quanten-Theorie der Materialien
|x 0
920 1 _ |0 I:(DE-Juel1)PGI-1-20110106
|k PGI-1
|l Quanten-Theorie der Materialien
|x 1
980 _ _ |a conf
980 _ _ |a VDB
980 _ _ |a I:(DE-Juel1)IAS-1-20090406
980 _ _ |a I:(DE-Juel1)PGI-1-20110106
980 _ _ |a UNRESTRICTED

LibraryCollectionCLSMajorCLSMinorLanguageAuthor
Marc 21