We study the reversal of magnetization in an isotropic ferromagnetic film free from charges by exposing it to a circularly polarized electromagnetic (EM) field. The magnetization excitations obtained in the form of line and lump solitons of the completely integrable modified KP-II equation which is derived using a reductive perturbation method from the set of coupled Landau-Lifshitz and Maxwell equations. It is observed that when the polarization of the EM-field is reversed followed by a rotation, for every 2π-degrees, the magnetization is reversed.
@article{arxiv.nlin/0107058,
title = {Magnetization Reversal in Ferromagnetic Film Through Solitons by Electromagnetic Field},
author = {V. Veerakumar and M. Daniel},
journal= {arXiv preprint arXiv:nlin/0107058},
year = {2007}
}
Comments
RevTex format;11 pages;2 figures;submitted to Physical Review B(Rapid Communications)