Geodesic
Macroscopic theory of relaxation of collective excitations in disordered and noncollinear magnets
Teoretičeskaâ i matematičeskaâ fizika, Tome 77 (1988) no. 2, pp. 311-318 
V. G. Bar'yakhtar; V. G. Belykh; T. K. Soboleva. Macroscopic theory of relaxation of collective excitations in disordered and noncollinear magnets. Teoretičeskaâ i matematičeskaâ fizika, Tome 77 (1988) no. 2, pp. 311-318. http://geodesic.mathdoc.fr/item/TMF_1988_77_2_a14/
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     author = {V. G. Bar'yakhtar and V. G. Belykh and T. K. Soboleva},
     title = {Macroscopic theory of relaxation of collective excitations in disordered and noncollinear magnets},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {311--318},
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     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1988_77_2_a14/}
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Voir la notice de l'article provenant de la source Math-Net.Ru

In the framework of the general hydrodynamic approach a method is proposed for describing the relaxation of low-frequency magnetic excitations in disordered spin systems and many-sublattice magnets. Expressions are obtained in terms of Goldstone fields for the dissipation function both in the exchange approximation and when allowance is made for relativistic interactions.

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