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Nonlinear Landau-Lifshitz dynamics for circularly and elliptically polarized applied magnetic fields

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3 Author(s)
Serpico, C. ; Dept. of Electr. Eng., Naples Univ., Italy ; Mayergoyz, Isaak ; Bertotti, Giorgio

The magnetization dynamics described by the Landau-Lifshitz equation is studied. In the case of circularly polarized applied magnetic field, the equation may have periodic and quasi-periodic solutions while chaotic dynamics is precluded. The qualitative change in the magnetization dynamics is examined when the polarization of a transverse harmonic magnetic field is gradually changed from circular to linear. Various nonlinear phenomena such as quasi-periodic behavior, symmetry breaking bifurcations and chaotic motions are observed

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Magnetics, IEEE Transactions on  (Volume:36 ,  Issue: 5 )