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Critical fluctuations in a mesoscopic superconducting ring.

Authors
  • Buzdin, A I
  • Varlamov, A A
Type
Published Article
Journal
Physical review letters
Publication Date
Aug 12, 2002
Volume
89
Issue
7
Pages
76601–76601
Identifiers
PMID: 12190543
Source
Medline
License
Unknown

Abstract

The nonlocal magnetoconductivity fluctuations in a superconducting submicron ring, with radius comparable to the Ginzburg-Landau coherence length, are studied. The order parameter mode separation yields to the solution of the time-dependent Ginzburg-Landau equation and the paraconductivity Fourier components are calculated in the vicinity of the critical temperature, including the critical fluctuation region. The homogeneous component has a logarithmic singularity at T(c) while the other components are found to be not singular.

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