Title: Superconductivity with angular dependent coupling: stripes, Coulomb repulsion and enhanced T-c
Authors: Moshchalkov, Victor ×
Ivanov, VA #
Issue Date: 2002
Series Title: Physica. C, Superconductivity vol:377 issue:4 pages:475-480
Conference: date:Katholieke Univ Leuven, Lab Vaste Stoffys Magnetisme, B-3001 Heverlee, Belgium
Abstract: We have analysed a simple analytically solvable model with an angular dependent coupling lambda(phi) represented by a square-well form. We have found that the introduction of the Coulomb repulsion lambda(C), increasing the "contrast" \lambda\ + \lambda(C)\, or the depth of the angular modulation of lambda(phi), leads to a remarkable enhancement of the superconducting critical temperature T-c. This effect can be optimized by combining attractive (lambda < 0) and repulsive (lambda > 0) interactions appearing, for example, along stripes and perpendicular to them in high-T-c superconductors. (C) 2002 Elsevier Science B.V. All rights reserved.
ISSN: 0921-4534
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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