Paper Title:

Magnetic Excitations in Locally Non-Equilibrium Media

Periodical Solid State Phenomena (Volume 190)
Main Theme Magnetism and Magnetic Materials V
Edited by N. Perov and V. Rodionova
Pages 19-22
DOI 10.4028/www.scientific.net/SSP.190.19
Citation A. Kabychenkov, 2012, Solid State Phenomena, 190, 19
Online since June, 2012
Authors A. Kabychenkov
Keywords Motion Equation for Magnetization, Spin-Electromagnetic Wave
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Abstract

The motion equation for magnetization in locally non-equilibrium media is derived. It is shown that in non-ordered media locally non-equilibrium excitations have peculiarities. There exist coupled waves of the magnetization and magnetic vector potential. Dispersion relation of the waves have frequencies corresponding to undamped waves or constant-phase damped waves and frequencies corresponding to change of real and imaginary parts of the wave number relation. Spectrum of the non-equilibrium fluctuations exhibits some pair of spin-electromagnetic modes without energy gap and electromagnetic-spin modes with energy gap branches.