Enhancement of the supercurrent at a finite voltage in a sandwich-type ballistic SINIS junction

I. P. Nevirkovets*, Serhii Shafranjuk, O. Chernyashevskyy, J. B. Ketterson

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

A large, reentrant, Josephson current is observed in SINIS (Nb/Al/AlOx/Al/AlOx/Al/Nb) junctions at a finite voltage close to Δ/e (where Δ is the superconducting energy gap in S) and a bias current exceeding the zero-voltage Josephson current. The effect is studied using a multiterminal device configuration. A theoretical interpretation in terms of quantized electron states in the N layer is provided.

Original languageEnglish (US)
Article number127002
JournalPhysical review letters
Volume98
Issue number12
DOIs
StatePublished - Mar 19 2007

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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