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Regular and chaotic precession of magnetization in magnetic films with a stripe domain structure

Physics of the Solid State, ISSN: 1063-7834, Vol: 50, Issue: 12, Page: 2275-2284
2008
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Based on a numerical solution of the equations of motion found over a wide range of frequencies of an alternating magnetic field, the nonlinear precession dynamics of magnetization are studied in thin-film structures of the (100) type with a stripe domain structure in a perpendicular bias field. The conditions are determined under which high-amplitude regular and chaotic dynamic regimes occur. Bifurcational variations in the precession of coupled magnetic moments and dynamic-bistability states are detected. The specific features of the spectrum of Lyapunov exponents and of time analogs of Poincaré cross sections of trajectories in chaotic regimes are considered. © 2008 Pleiades Publishing, Ltd.

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