Magnetic Excitations in Locally Non-Equilibrium Media

A. Kabychenkov

doi:10.4028/www.scientific.net/SSP.190.19

Paper Titles

Ageing Phenomena in Two-Dimensional XY-Model
p.3

Functional-Integral Approach to the Investigation of the Spin-Spiral Magnetic Order and Phase Separation
p.7

Theoretical Investigation of the Magnetic Order in FeAs
p.11

Spin-Waves in Stoner Ferromagnetic Phase of a Two-Dimensional Electron System
p.15

Magnetic Excitations in Locally Non-Equilibrium Media
p.19

Field-Theory Description of Nonequilibrium Critical Dynamics for Spin Systems
p.23

Description of Substitutional Adsorption of Magnetic Ions on Metallic Surfaces with Formation of Monolayer Ferromagnetic Films Using the Spin-Density Functional Method
p.27

Non-Equilibrium Critical Dynamics of Ferromagnets with Long Range Correlated Defects
p.31

Ab Initio Calculation of the System Cr–GaSb: A New High-Pressure Phase Containing Defects
p.35

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Magnetic Excitations in Locally Non-Equilibrium Media

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.