Geodesic
Low-frequency dynamics of many-sublattice magnet
Teoretičeskaâ i matematičeskaâ fizika, Tome 102 (1995) no. 3, pp. 470-479 
A. A. Isaev; S. V. Peletminskii. Low-frequency dynamics of many-sublattice magnet. Teoretičeskaâ i matematičeskaâ fizika, Tome 102 (1995) no. 3, pp. 470-479. http://geodesic.mathdoc.fr/item/TMF_1995_102_3_a12/
@article{TMF_1995_102_3_a12,
     author = {A. A. Isaev and S. V. Peletminskii},
     title = {Low-frequency dynamics of many-sublattice magnet},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {470--479},
     year = {1995},
     volume = {102},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1995_102_3_a12/}
}
TY  - JOUR
AU  - A. A. Isaev
AU  - S. V. Peletminskii
TI  - Low-frequency dynamics of many-sublattice magnet
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1995
SP  - 470
EP  - 479
VL  - 102
IS  - 3
UR  - http://geodesic.mathdoc.fr/item/TMF_1995_102_3_a12/
LA  - ru
ID  - TMF_1995_102_3_a12
ER  - 
%0 Journal Article
%A A. A. Isaev
%A S. V. Peletminskii
%T Low-frequency dynamics of many-sublattice magnet
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1995
%P 470-479
%V 102
%N 3
%U http://geodesic.mathdoc.fr/item/TMF_1995_102_3_a12/
%G ru
%F TMF_1995_102_3_a12

Voir la notice de l'article provenant de la source Math-Net.Ru

A study is made of the low-frequency dynamics of a many-sublattice magnet with exchange interaction. On the basis of the Landau–Lifshitz equations with dissipative term, it is shown that at time $t\gg \tau _r$ ($\tau _r$ is the relaxation time) a reduced description of the state of the magnet arises. The complete system of dynamical equations of the many-sublattice magnet for the parameters of the reduced description, namely, the density of the total spin and the real rotation matrix, is determined.