Proximity Action theory of superconductive nanostructures

M.A. Skvortsov^a, A.I. Larkin^a, b, M.V. Feigel’man^a
^aL.D. Landau Institute for Theoretical Physics, Russian Academy of Sciences, Chernogolovka, Moscow Region, Russian Federation
^bWilliam I. Fine Theoretical Physics Institute, University of Minnesota, Minnesota, Minnesota , United States of America

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 (all)
DOI: 10.1070/1063-7869/44/10S/S17
URL: https://ufn.ru/en/articles/2001/13/q/
Citation: Skvortsov M A, Larkin A I, Feigel’man M V "Proximity Action theory of superconductive nanostructures" Phys. Usp. 44 76–80 (2001)

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RefWorks

RT Journal
T1 Proximity Action theory of superconductive nanostructures
A1 Skvortsov,M.A.
A1 Larkin,A.I.
A1 Feigel’man,M.V.
PB Physics-Uspekhi
PY 2001
FD 10 Sup, 2001
JF Physics-Uspekhi
JO Phys. Usp.
VO 44
IS 13
SP 76-80
DO 10.1070/1063-7869/44/10S/S17
LK https://ufn.ru/en/articles/2001/13/q/

Оригинал: Skvortsov M A, Larkin A I, Feigel’man M V «Proximity Action theory of superconductive nanostructures» УФН 171 76–80 (2001); DOI: 10.1070/1063-7869/44/10S/S17