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Little-Parks effect and multiquanta vortices in a hybrid superconductor--ferromagnet system

A. Yu. Aladyshkin·A. S. Mel'nikov·D. A. Ryzhov
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Abstract

Within the phenomenological Ginzburg-Landau theory we investigate the phase diagram of a thin superconducting film with ferromagnetic nanoparticles. We study the oscillatory dependence of the critical temperature on an external magnetic field similar to the Little-Parks effect and formation of multiquantum vortex structures. The structure of a superconducting state is studied both analytically and numerically.

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A. Yu. Aladyshkin, A. S. Mel'nikov, D. A. Ryzhov. 2003-05-23. Little-Parks effect and multiquanta vortices in a hybrid superconductor--ferromagnet system. https://doi.org/10.1088/0953-8984%2F15%2F38%2F024

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