Sign reversal of the Josephson inductance magnetochiral anisotropy and 0-π-like transitions in supercurrent diodes.
Journal
Nature nanotechnology
ISSN: 1748-3395
Titre abrégé: Nat Nanotechnol
Pays: England
ID NLM: 101283273
Informations de publication
Date de publication:
Nov 2023
Nov 2023
Historique:
received:
29
12
2022
accepted:
09
06
2023
medline:
11
7
2023
pubmed:
11
7
2023
entrez:
10
7
2023
Statut:
ppublish
Résumé
The recent discovery of the intrinsic supercurrent diode effect, and its prompt observation in a rich variety of systems, has shown that non-reciprocal supercurrents naturally emerge when both space-inversion and time-inversion symmetries are broken. In Josephson junctions, non-reciprocal supercurrent can be conveniently described in terms of spin-split Andreev states. Here we demonstrate a sign reversal of the Josephson inductance magnetochiral anisotropy, a manifestation of the supercurrent diode effect. The asymmetry of the Josephson inductance as a function of the supercurrent allows us to probe the current-phase relation near equilibrium, and to probe jumps in the junction ground state. Using a minimal theoretical model, we can then link the sign reversal of the inductance magnetochiral anisotropy to the so-called 0-π-like transition, a predicted but still elusive feature of multichannel junctions. Our results demonstrate the potential of inductance measurements as sensitive probes of the fundamental properties of unconventional Josephson junctions.
Identifiants
pubmed: 37430040
doi: 10.1038/s41565-023-01451-x
pii: 10.1038/s41565-023-01451-x
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1266-1272Subventions
Organisme : Deutsche Forschungsgemeinschaft (German Research Foundation)
ID : 314695032 (SFB1277)
Organisme : Deutsche Forschungsgemeinschaft (German Research Foundation)
ID : 454646522
Organisme : Slovenská Akadémia Vied (Slovak Academy of Sciences)
ID : IM-2021-26 (SUPERSPIN)
Informations de copyright
© 2023. The Author(s), under exclusive licence to Springer Nature Limited.
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