Condensed Matter Physics, 1994, No. 3, p. 176-180, English
Title: The influence of spins' structural fluctuationon the spectrum and damping of spin waves in amorphous ferromagnets
Authors: I.O. Vakarchuk, V.M. Tkachuk, T.V. Kuliy

The relation between atomic momenta fluctuations and density fluctuations is obtained in frames of mean-field approximation. Using two-time temperature Green functions within Tyablikov approximation the equations for spin excitation energy and damping are obtained. The asymptotics of energy and damping in the long-wave limit are investigated and the anomalous behaviour of spin-wave stiffness constant is discussed.

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