Abstract
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.
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Original Russian Text © A.M. Shutyĭ, 2008, published in Fizika Tverdogo Tela, 2008, Vol. 50, No. 12, pp. 2179–2187.
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Shutyĭ, A.M. Regular and chaotic precession of magnetization in magnetic films with a stripe domain structure. Phys. Solid State 50, 2275–2284 (2008). https://doi.org/10.1134/S1063783408120081
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DOI: https://doi.org/10.1134/S1063783408120081