On the interaction of a shear wave with a moving domain wall in a nonlinear response of the spin subsystem |
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| Authors: | E A Vilkov V G Shavrov N S Shevyakhov |
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| Institution: | (1) Institute of Radio Engineering and Electronics, Russian Academy of Sciences, 432011 Ul’yanovsk, Russia;(2) Institute of Radio Engineering and Electronics, Russian Academy of Sciences, ul. Mokhovaya 18, Moscow, 103907, Russia |
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| Abstract: | A solution of the problem of parametric interaction between a plane monochromatic shear wave and a uniformly moving 180°-domain wall of a garnet-ferrite crystal is obtained in the exchangeless magnetostatic approximation by using the perturbation method under the conditions of a nonlinear response of the spin subsystem. It is shown that in a ferromagnetic resonance with magnetostatic oscillation of stray fields, the nonlinearity of the spin subsystem leads to the excitation of shear waves of triple frequency, which may have amplitudes comparable with that of the incident wave for oscillations doubly localized by a domain wall. |
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