Current dependence of the negative magnetoresistance in superconducting NbN nanowires.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
20 Dec 2022
20 Dec 2022
Historique:
received:
01
09
2022
accepted:
15
12
2022
entrez:
20
12
2022
pubmed:
21
12
2022
medline:
21
12
2022
Statut:
epublish
Résumé
Magnetoresistance measurements in amorphous NbN nanowires show that transport current affects their negative magnetoresistance (nMR) in a manner qualitatively similar to temperature. In particular, the current suppresses the nMR and, beyond a certain level it eliminates the effect altogether. As the temperature dependence of the nMR effect is more pronounced at low currents, similarly the current dependence of the effect is more pronounced at low temperatures. These results are discussed in terms of the phenomenological model which attributes the nMR to the interplay between the resistance originating from the rate of phase slips via the Josephson relation and the Ohmic contribution from quasiparticles charge imbalance that accompany fluctuations of the order parameter in the nanowire.
Identifiants
pubmed: 36539457
doi: 10.1038/s41598-022-26475-6
pii: 10.1038/s41598-022-26475-6
pmc: PMC9767931
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
22027Subventions
Organisme : Ministry of Science and Technology, Israel
ID : 1111
Informations de copyright
© 2022. The Author(s).
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