Little-Parks oscillations in superconducting ring with Josephson junctions

Omri J. Sharon, Amos Sharoni, Jorge Berger, Avner Shaulov, Yosi Yeshurun

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

Nb nano-rings connected serially by Nb wires exhibit, at low bias currents, the typical parabolic Little-Parks magnetoresistance oscillations. As the bias current increases, these oscillations become sinusoidal. This result is ascribed to the generation of Josephson junctions caused by the combined effect of current-induced phase slips and the non-uniformity of the order parameter along each ring due to the Nb wires attached to it. This interpretation is validated by further increasing the bias current, which results in magnetoresistance oscillations typical of a SQUID.

Original languageEnglish
Article number012047
JournalJournal of Physics: Conference Series
Volume969
Issue number1
DOIs
StatePublished - 19 Apr 2018
Event28th International Conference on Low Temperature Physics, LT 2018 - Gothenburg, Sweden
Duration: 9 Aug 201716 Aug 2017

Bibliographical note

Publisher Copyright:
© Published under licence by IOP Publishing Ltd.

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