Proximity-induced transport in superconductor-normal metal nanostructures

R. Seviour, C. J. Lambert, A. F. Volkov

Research output: Contribution to journalLetter

3 Citations (Scopus)

Abstract

We calculate the conductance for a diffusive normal wire (N) in contact with a superconductor (S). Using a numerical scattering matrix approach and a quasiclassical Green function technique, we compare the conductance G of the system connected to two normal reservoirs when the superconductor is in its normal state with the conductance Gs in the superconducting state and predict that the difference δG = Gs - G may be negative or positive depending upon the S/N interface resistance and the interface resistance at the ends of the N wire. As the temperature T is varied, δG(T) may change sign and exhibit two maxima.

Original languageEnglish
Pages (from-to)L615-L621
Number of pages7
JournalJournal of Physics Condensed Matter
Volume10
Issue number35
DOIs
Publication statusPublished - 7 Sep 1998
Externally publishedYes

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