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Distorted vortex in Josephson-coupled layered superconductors

L. N. Bulaevskii, M. Ledvij, V. G. Kogan

DOI 10.1103/PhysRevB.46.11807 · Physical Review B

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Abstract

The free energy functional for a single vortex in a system of Josephson-coupled superconducting layers is derived in terms of coordinates of two-dimensional vortices, ‘‘pancakes,’’ which make the vortex ‘‘line.’’ The energy consists of equally important two-, three-, and four-pancake interactions.

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