Journal Article

FZJ-2024-03028

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Conductance asymmetry in proximitized magnetic topological insulator junctions with Majorana modes

Di Miceli, D. ; Zsurka, E.FZJ* ; Legendre, J. ; Moors, K.FZJ* ; Schmidt, T. L. ; Serra, L.

2023
Inst. Woodbury, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevB.108.035424  doi:10.34734/FZJ-2024-03028

Abstract: We theoretically discuss electronic transport via Majorana states in magnetic topological insulator-superconductor junctions with an asymmetric split of the applied bias voltage. We study normal-superconductor-normal (NSN) junctions made of narrow (wirelike) or wide (filmlike) magnetic topological insulator slabs with a central proximitized superconducting sector. The occurrence of charge-nonconserving Andreev processes entails a nonzero conductance related to an electric current flowing to ground from the proximitized sector of the NSN junction. We show that topologically protected Majorana modes require an antisymmetry of this conductance with respect to the point of equally split bias voltage across the junction.

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Contributing Institute(s):

1. Halbleiter-Nanoelektronik (PGI-9)
2. JARA-FIT (JARA-FIT)

Research Program(s):

1. 5222 - Exploratory Qubits (POF4-522) (POF4-522)

Appears in the scientific report 2024

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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