Enhancement of the Josephson critical current in a multiterminal SINIS device under current injection

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

In a multiterminal SINIS (NbAlAl Ox AlAl Ox AlNb) device (where S, I, and N denote a superconductor, insulator, and normal metal), which has electrical leads connected to the middle N (Al) layer, a current passing through one of the subjunctions (NIS) modulates the supercurrent through the other subjunction (SIN), so that, at some injection levels, the supercurrent increases above its steady state value. A theoretical model is given that describes the effect in terms of nonlinear coupling of the two subjunctions due to the electric current controlled by the proximity effect in the N layer.

Original languageEnglish (US)
Article number184520
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume76
Issue number18
DOIs
StatePublished - Nov 28 2007

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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