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Title: Interfacial tension and interface delocalization phase boundary for strongly type-I superconductors
Authors: Boulter, CJ ×
Indekeu, Joseph #
Issue Date: 1998
Publisher: PLENUM PUBL CORP
Series Title: International Journal of Thermophysics vol:19 issue:3 pages:857-865
Conference: date:Katholieke Univ Leuven, Vaste Stof Fys & Magnetisme Lab, B-3001 Louvain, Belgium
Abstract: We analytically determine the interface delocalization (or wetting) transition phase boundary in the limit of strongly type-I superconductors. In particular, within Ginzburg-Landau theory we derive an analytic expression for the reduced surface tension, Gamma(SC/N), of a type-I superconductor. We find that the truncated expansion Gamma(SC/N) approximate to 2 root(2/3) - 1.02817 root kappa - 0.13307 kappa root kappa (where kappa is the Ginzburg-Landau parameter) is so accurate in the entire type-I regime 0 less than or equal to kappa less than or equal to 1/root 2 that derivation of higher-order terms is unnecessary. We further derive an expression for the wall/superconductor interfacial tension which again proves accurate across a broad range of kappa values. These expansions allow us to locate the low-kappa interface delocalization phase boundary accurately, complementing previous numerical results for the wetting phase diagram.
ISSN: 0195-928X
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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