This article is cited in 2 papers

Mesoscopic superconductivity

Proximity Action theory of superconductive nanostructures

M. A. Skvortsov^a, A. I. Larkin^ab, M. V. Feĭgel'man<sup>a

a</sup> L. D. Landau Institute for Theoretical Physics, Russian Academy of Sciences, ul. Kosygina 2, 117940 Moscow, Russian Federation
^b Theoretical Physics Institute, University of Minnesota, Minneapolis, MN 55455, USA

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.

PACS: 74.20.-z, 74.70.-b, 74.80.-g, 03.65.Ud

Language: English

 English version: Physics–Uspekhi, 2001, 44:10 suppl., s76–s80

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