Solitons in the Domain Structure of an Easy-Axis Ferromagnet

Abstract

We obtain new solutions of the Landau-Lifshitz model by the inverse scattering technique. They describe solitons strongly associated with the domain structure of an easy-axis ferromagnet. Solitons serve as elementary carriers of macroscopic shifts of the structure and are, under certain conditions, nuclei of the magnetic reversal of a material. We show, that the inhomogeneous elliptic precession of magnetization in a soliton core leads to oscillations of the neighbouring domain walls of the structure. We study the behavior of immobile solitons in the domain structure, which are more simple to observe in experiment. We investigate the structure of solitons near the boundaries of their existence. © Published under licence by IOP Publishing Ltd.