Superconductivity in disordered thin films: giant mesoscopic fluctuations

M. A. Skvortsov; M. V. Feigel'man

doi:10.1103/physrevlett.95.057002

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Superconductivity in disordered thin films: giant mesoscopic fluctuations

M. A. Skvortsov·M. V. Feigel'man

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Abstract

We discuss intrinsic inhomogeneities of superconductive properties of uniformly disordered thin films with large dimensionless conductance g. It is shown that mesoscopic fluctuations, which usually contain a small factor 1/g, are crucially enhanced near the critical conductance g_c >> 1 where superconductivity is destroyed at T=0 due to Coulomb suppression of the Cooper attraction. This leads to strong spatial fluctuations of the local transition temperature and thus to percolative nature of the thermal superconductive transition.

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M. A. Skvortsov, M. V. Feigel'man. 2005-03-31. Superconductivity in disordered thin films: giant mesoscopic fluctuations. https://doi.org/10.1103/physrevlett.95.057002

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