Vortices in Ginzburg-Landau billiards

Details Vortices in Ginzburg-Landau billiards Vortices in Ginzburg-Landau billiards

1998-12-16

arxiv.org/abs/cond-mat/9812275v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

RevTex, 17 pages, 3 eps figures

Scientific paper

10.1088/0305-4470/32/41/307

We present an analysis of the Ginzburg-Landau equations for the description of a two-dimensional superconductor in a bounded domain. Using the properties of a special integrability point of these equations which allows vortex solutions, we obtain a closed expression for the energy of the superconductor. The role of the boundary of the system is to provide a selection mechanism for the number of vortices. A geometrical interpretation of these results is presented and they are applied to the analysis of the magnetization recently measured on small superconducting disks. Problems related to the interaction and nucleation of vortices are discussed.

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