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On excess magnetoconductivity of a superconductive glass

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Zeitschrift für Physik B Condensed Matter

Abstract

The behaviour of an excess conductivity in the presence of a magnetic field is studied via the superconductive glass (SG) model. The paper predicts a crossover between two- and three-dimensional behaviours of paraconductivity. It is shown that for temperatures well aboveT c (when a typical distance between grains is larger than the correlation length) a two-dimensional analog of the Aslamazov-Larkin law is realized, and in the region nearT c paraconductivity reduces to a three-dimensional form of theXY-like model of a granular superconductor. The obtained results are in qualitative agreement with the data for high-T c superconductors (HTS).

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Authors and Affiliations

  1. Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Head Post Office, P.O. Box 79, SU-101000, Moscow, USSR

    S. A. Sergeenkov

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  1. S. A. Sergeenkov
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Sergeenkov, S.A. On excess magnetoconductivity of a superconductive glass. Z. Physik B - Condensed Matter 82, 325–327 (1991). https://doi.org/10.1007/BF01357173

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  • DOI: https://doi.org/10.1007/BF01357173

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