Abstract
The dissipative Landau-Lifshitz equation as a model for describing the dynamics of spatially homogeneous magnetization inside a ferromagnet with strong uniaxial anisotropy is investigated by Melnikov's method. For strong enough anisotropy ( AM > H) homoclinic points arise above a certain threshold in the amplitude of the linearly polarized signal field - a reference to possible chaotic motion. The threshold can be much smaller than the well-known critical fields for Suhl's spinwave instabilities.
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