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Title: Ginzburg-Landau theory of the upper critical field in layered local-pair superconductors

Abstract

The upper critical field for coupled layered superconductors with local pairs is analyzed within the mean-field approach for the anisotropic negative-{ital U} Hubbard model. Effects of reduced dimensionality are investigated by solving the Ginzburg-Landau equations to obtain critical fields for different anisotropy ratios. The Harper`s-type system of equations is solved analytically for some special field values. Limitations of Peierls substitution are also discussed.

Authors:
 [1]
  1. Department of Physics, Bilkent University, Bilkent 06533, Ankara (Turkey)
Publication Date:
OSTI Identifier:
142601
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 49; Journal Issue: 9; Other Information: PBD: 1 Mar 1994
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; TYPE-II SUPERCONDUCTORS; CRITICAL FIELD; HUBBARD MODEL; GINZBURG-LANDAU THEORY; MEAN-FIELD THEORY; ANALYTICAL SOLUTION; ANISOTROPY

Citation Formats

Gedik, Z. Ginzburg-Landau theory of the upper critical field in layered local-pair superconductors. United States: N. p., 1994. Web. doi:10.1103/PhysRevB.49.6372.
Gedik, Z. Ginzburg-Landau theory of the upper critical field in layered local-pair superconductors. United States. doi:10.1103/PhysRevB.49.6372.
Gedik, Z. Tue . "Ginzburg-Landau theory of the upper critical field in layered local-pair superconductors". United States. doi:10.1103/PhysRevB.49.6372.
@article{osti_142601,
title = {Ginzburg-Landau theory of the upper critical field in layered local-pair superconductors},
author = {Gedik, Z.},
abstractNote = {The upper critical field for coupled layered superconductors with local pairs is analyzed within the mean-field approach for the anisotropic negative-{ital U} Hubbard model. Effects of reduced dimensionality are investigated by solving the Ginzburg-Landau equations to obtain critical fields for different anisotropy ratios. The Harper`s-type system of equations is solved analytically for some special field values. Limitations of Peierls substitution are also discussed.},
doi = {10.1103/PhysRevB.49.6372},
journal = {Physical Review, B: Condensed Matter},
number = 9,
volume = 49,
place = {United States},
year = {1994},
month = {3}
}