Proximity Action theory of superconductive nanostructures
Abstract
We review a novel approach to the superconductive proximity effect in disordered normal-superconducting (N-S) structures. The method is based on the multicharge Keldysh action and is suitable for the treatment of interaction and fluctuation effects. As an application of the formalism, we study the subgap conductance and noise in two-dimensional N-S systems in the presence of the electron-electron interaction in the Cooper channel. It is shown that singular nature of the interaction correction at large scales leads to a nonmonotonuos temperature, voltage and magnetic field dependence of the Andreev conductance.
Keywords
Cite
@article{arxiv.cond-mat/0011307,
title = {Proximity Action theory of superconductive nanostructures},
author = {M. A. Skvortsov and A. I. Larkin and M. V. Feigel'man},
journal= {arXiv preprint arXiv:cond-mat/0011307},
year = {2009}
}
Comments
RevTeX, 6 pages, 5 eps figures. This is a concise review of cond-mat/0008463; to be published in the Proceedings of the conference "Mesoscopic and strongly correlated electron systems" (Chernogolovka, Russia, July 2000)