LOW-FREQUENCY DYNAMICS OF MANY-SUBLATTICE MAGNET

Authors
ISAEV AA PELETMINSKII SV
Citation
Aa. Isaev et Sv. Peletminskii, LOW-FREQUENCY DYNAMICS OF MANY-SUBLATTICE MAGNET, Theoretical and mathematical physics, 102(3), 1995, pp. 341-348
Citations number
6
Categorie Soggetti
Mathematical Method, Physical Science",Physics,"Physycs, Mathematical
Journal title
Theoretical and mathematical physics → ACNP
ISSN journal
00405779
Volume
102
Issue
3
Year of publication
1995
Pages
341 - 348
Database
ISI
SICI code
0040-5779(1995)102:3<341:LDOMM>2.0.ZU;2-E
Abstract
A study is made of the low-frequency dynamics of a many-sublattice mag net with exchange interaction. On the basis of the Landau-Lifshitz equ ations with dissipative term, it is shown that at times t much greater than tau(r), (tau(r) is the relaxation time) a reduced description of the state of the magnet arises. The complete system of dynamical equa tions of the many-sublattice magnet for the parameters of the reduced description, namely, the density of the total spin and the real rotati on matrix, is determined.