Features of non-linear dynamics of domain walls in ferrimagnetics

We study the nonlinear dynamics of a 180 degree domain wall in a ferrite with two nonequivalent sublattices in the field of a sound wave, which propagates perpendicularly to the plain of the domain wall. The dependences of the drift velocity on the polarization and acoustic wave parameters have been obtained. The analysis of a long-wavelength and short-wavelength approximation is carried out. The conditions of the drift of a stripe domain structure in ferrites are found