Proximity Effect in Presence of Quantum Fluctuations
Abstract
The effect of Coulomb interaction upon superconductive proximity effect in disordered metals is studied, employing newly developed Keldysh functional approach (cond-mat/9907358). We have calculated subgap Andreev conductance between superconductor and 2D dirty film, as well as Josephson coupling via such a film. Both two qualitatively different Coulomb effects - suppression of the tunneling density of states and disorder-enchanced repulsion in the Cooper channel - are shown to be important at sufficiently low temperatures.
Keywords
Cite
@article{arxiv.cond-mat/9908075,
title = {Proximity Effect in Presence of Quantum Fluctuations},
author = {M. V. Feigel'man and A. I. Larkin and M. A. Skvortsov},
journal= {arXiv preprint arXiv:cond-mat/9908075},
year = {2016}
}
Comments
5 pages, special style file included. To be published in the Proceedings of the XXIVth Recontres de Moriond, "Quantum Physics at Mesoscopic Scale", Les Arc, Jan.23-30, 1999. (An errow in the reference number in the asbtract is corrected)