Nonlinear microscopic relaxation of uniform magnetization precession
Materials Science
2009-11-07 v1
Abstract
Dynamic relaxation for nonlinear magnetization excitation is analyzed. For direct processes, such as magnon-electron scattering and two-magnon scattering, the relaxation rate is determined from the linear case simply by utilizing the magnetization oscillation frequency for nonlinear excitation. For an indirect process, such as slow-relaxing impurities, the analysis gives an additional relaxation term proportional to the excitation level. In all cases the effective magnetization damping is increased compared to Landau-Lifshitz-Gilbert damping.
Keywords
Cite
@article{arxiv.cond-mat/0211499,
title = {Nonlinear microscopic relaxation of uniform magnetization precession},
author = {Vladimir L. Safonov and H. Neal Bertram},
journal= {arXiv preprint arXiv:cond-mat/0211499},
year = {2009}
}
Comments
Presented at MMM'02