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Dissipative Dynamics of Solitons in Planar Ferromagnets

Jacek Dziarmaga
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Abstract

Dynamics of magnetic bubbles in planar ferromagnets described by the Landau-Lifshitz equation with dissipation is analyzed. The pure O(3) sigma model has static multisoliton solutions, characterized by a number of parameters. The parameters describe a finite dimensional manifold. A small perturbation of energy functional with respect to the sigma model forces solitons to move. Multisoliton dynamics is effectively reduced to a flow in the parameter space.

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Jacek Dziarmaga. 1997-03-04. Dissipative Dynamics of Solitons in Planar Ferromagnets. https://doi.org/10.1103/physrevlett.79.2129

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