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An effective lowest Landau level treatment of demagnetization in superconducting mesoscopic disks

J. J. Palacios·F. M. Peeters·B. J. Baelus
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Abstract

Demagnetization, which is inherently present in the magnetic response of small finite-size superconductors, can be accounted for by an effective $κ$ within a two-dimensional lowest Landau level approximation of the Ginzburg-Landau functional. We show this by comparing the equilibrium magnetization of superconducting mesoscopic disks obtained from the numerical solution of the three-dimensional Ginzburg-Landau equations with that obtained in the ``effective'' LLL approximation.

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J. J. Palacios, F. M. Peeters, B. J. Baelus. 2000-11-16. An effective lowest Landau level treatment of demagnetization in superconducting mesoscopic disks. https://doi.org/10.1103/physrevb.64.134514

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