Title: Surface superconductivity in a wedge
Authors: Fomin, VM ×
Devreese, JT
Moshchalkov, Victor #
Issue Date: 1998
Publisher: E D P SCIENCES
Series Title: Europhysics letters vol:42 issue:5 pages:553-558
Conference: date:State Univ Moldova, Dept Theoret Phys, Kishinev 2009, Moldova; Katholieke Univ Leuven, Vaste Stof Fys Magnetisme Lab, B-3001 Leuven, Belgium; Tech Univ Eindhoven, NL-5600 MB Eindhoven, Netherlands; Univ Antwerp, Ruca, B-2020 Antwerp, Belgium; Univ Instelling Antwerp, B-2610 Antwerp, Belgium
Abstract: For a superconducting wedge-like sample with angle alpha, the superconducting state is described and the phase boundaries are analyzed in the framework of the variational approach to the linearized Ginzburg-Landau equation. The nucleation of the superconducting state is shown to be substantially enhanced in the vicinity of the wedge's edge, where the local surface critical field H-c3 exceeds the bulk upper critical field H-c2 by the factor eta(alpha) = H-c3/H-c2 depending on alpha. The enhancement factor eta(alpha) is 1.69 for alpha = pi and is increased up to 3.79 for alpha = 0.44 pi.
ISSN: 0295-5075
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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