Dissipative Dynamics of Solitons in Planar Ferromagnets

Details Dissipative Dynamics of Solitons in Planar Ferromagnets Dissipative Dynamics of Solitons in Planar Ferromagnets

1997-03-04

arxiv.org/abs/cond-mat/9703045v1

Physics

Condensed Matter

6 pages in Revtex

Scientific paper

10.1103/PhysRevLett.79.2129

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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