Proximity Action theory of superconductive nanostructures

M.A. Skvortsov^а, A.I. Larkin^а, б, M.V. Feigel’man^а
^аИнститут теоретической физики им. Л.Д. Ландау, просп. Акад. Семенова 1а, Черноголовка, Московская обл., Ногинский р-н, 142432, Российская Федерация
^бWilliam I. Fine Theoretical Physics Institute, University of Minnesota, Minnesota, Minnesota, США

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.

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English fulltext is available at DOI: 10.1070/1063-7869/44/10S/S17

PACS: 74.20.−z, 74.70.−b, 74.80.-g, 03.65.Ud (все)
DOI: 10.1070/1063-7869/44/10S/S17
URL: https://ufn.ru/ru/articles/2001/13/q/
Цитата: Skvortsov M A, Larkin A I, Feigel’man M V "Proximity Action theory of superconductive nanostructures" УФН 171 76–80 (2001)

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PT Journal Article
TI Proximity Action theory of superconductive nanostructures
AU Skvortsov M A
FAU Skvortsov MA
AU Larkin A I
FAU Larkin AI
AU Feigel’man M V
FAU Feigel’man MV
DP 10 Sup, 2001
TA Усп. физ. наук
VI 171
IP 13
PG 76-80
RX 10.1070/1063-7869/44/10S/S17
URL https://ufn.ru/ru/articles/2001/13/q/
SO Усп. физ. наук 2001 Sup 10;171(13):76-80

English citation: Skvortsov M A, Larkin A I, Feigel’man M V “Proximity Action theory of superconductive nanostructures” Phys. Usp. 44 76–80 (2001); DOI: 10.1070/1063-7869/44/10S/S17