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Nonlinear CVC and critical current of the superconductive glass model

Authors
Journal
Physica C Superconductivity
0921-4534
Publisher
Elsevier
Publication Date
Volume
167
Identifiers
DOI: 10.1016/0921-4534(90)90352-f
Disciplines
  • Physics

Abstract

Abstract The power-law current-voltage characteristic (CVC) V ≈ ( I-I c ) a is calculated via the superconductive glass (SG) model. Temperatu re and magnetic field dependence of the exponent a and the critical current I c are discussed. It is shown, in particular, that a( T c )=2, thus excluding a possible 2D Kosterlitz-Thouless transition within the SG model. The obtained results are in qualitative agreement with experimental data for high- T c superconductors.

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