Dissipative Soliton Dynamics in Strongly Driven Ferromagnets

摘要: Easy plane ferromagnets (EPFM) strongly and rapidly driven by transverse magnetic fields under dissipation are studied. The effective nonlinear Landau-Lifshitz equation (LLE) for the slowly varying spin field components based on a multiple-time scale expansion method is derived. It turned out that driving gives rise to appearance of easy-axis anisotropy in direction perpendicular this field. Stationary moving Bloch domain walls means variational approach numerical integration LLE considered. Numerical results good agreement with analytical ones.