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Topological defects, pattern evolution, and hysteresis in thin magnetic films

P. A. Prudkovskii·A. N. Rubtsov·M. I. Katsnelson
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Abstract

Nature of the magnetic hysteresis for thin films is studied by the Monte-Carlo simulations. It is shown that a reconstruction of the magnetization pattern with external field occurs via the creation of vortex-antivortex pairs of a special kind at the boundaries of stripe domains. It is demonstrated that the symmetry of order parameter is of primary importance for this problem, in particular, the in-plane magnetic anisotropy is necessary for the hysteresis.

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P. A. Prudkovskii, A. N. Rubtsov, M. I. Katsnelson. 2005-11-25. Topological defects, pattern evolution, and hysteresis in thin magnetic films. https://doi.org/10.1209/epl%2Fi2005-10367-8

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