The pulse remagnetization of an originally magnetically saturated ferrimagnetic garnet is investigated experimentally. The sample is a thin uniaxial layer with the easy axis of magnetization normal to the sample plane and magnetic pulses are produced by a straight wire positioned on its surface. The slonczewski equations are applied to the description of the quasistatic behaviour of the nucleated domain structure. The experimental results are compared with theory and good qualitative agreement is obtained. For a more precise description of the dynamical behaviour the Slonczewski equations are extended to a case including spatial dispersion of relaxation due to the exchange interaction. © 1988.
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