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The effect of strong flux line correlations on the irreversibility line of high temperature superconductors

Authors
Journal
Physica C Superconductivity
0921-4534
Publisher
Elsevier
Publication Date
Volume
181
Identifiers
DOI: 10.1016/0921-4534(91)90127-k
Disciplines
  • Philosophy
  • Physics

Abstract

Abstract A phenomenological model is proposed to account for a recently observed crossover in the temperature dependence of the irreversibility line of high temperature superconductors from a (1 - T/ T c) 3 2 to a (1 - T/ T c) 3 dependence. The model, which distinguishes between weak correlations and strong correlations in the flux line lattice, indicates that the crossover should occur at magnetic fields corresponding to a flux line spacing of about λ/4, λ being the penetration depth transverse to the field.

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