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Title

Topological suppression of magnetoconductance oscillations in normal–superconductor junctions

AuthorsOsca, Javier; Serra, Llorenç
KeywordsMagnetoconductance
Majorana modes
Nanowires
Quantum wires
Topological superconductivity
Issue DateOct-2017
PublisherJohn Wiley & Sons
CitationPhysica Status Solidi - B - Basic Solid State Physics 254(10): 1700135 (2017)
AbstractWe show that the magnetoconductance oscillations of laterally‐confined two‐dimensional (2D) normal–superconductor (NS) junctions are completely suppressed when the superconductor side enters a topological phase. This suppression can be attributed to the modification of the vortex structure of local currents at the junction caused by the topological transition of the superconductor. The two regimes (with and without oscillations) could be seen in a semiconductor 2D junction with a cleaved‐edge geometry, one of the junction arms having proximitized superconductivity. We predict similar oscillations and suppression as a function of the Rashba coupling. The oscillation suppression is robust against differences in chemical potential and phases of lateral superconductors.
Publisher version (URL)https://doi.org/10.1002/pssb.201700135
URIhttp://hdl.handle.net/10261/174125
DOI10.1002/pssb.201700135
ISSN0370-1972
E-ISSN1521-3951
Appears in Collections:(IFISC) Artículos
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