Physics – Condensed Matter
Scientific paper
1995-02-15
Physics
Condensed Matter
14 Latex pages, 1 figure available upon request.
Scientific paper
10.1103/PhysRevB.52.623
The interaction of an edge dislocation made of half the superconducting plane with a magnetic interlayer vortex is considered within the framework of the Lawrence-Doniach model with negative as well as positive Josephson interlayer coupling. In the first case the binding energy of the vortex and the dislocation has been calculated by employing a variational procedure. The current distribution around the bound vortex turns out to be asymmetric. In the second case the dislocation carries a spontaneous magnetic half-vortex, whose binding energy with the dislocation turns out to be infinite. The half-vortex energy has been calculated by the same variational procedure. Implications of the possible presence of such half-vortices for the properties of high temperature superconductors are discussed.
Birman Joseph L.
Krakovsky Andrey
Kuklov A. B.
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