Article

Equation of motion of the magnetic moment in the quasiclassical approximation

V. A. PopovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovА. А. ЛогиновPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kov

Soviet Journal of Low Temperature Physicsjournal1980en

ABI

Abstract

An equation of motion is derived for the lattice-site magnetic moment in the quasiclassical approximation. It is shown that the presence of integrals of motion relating the components of the moment at each site prevents the derived equation from introducing new (in addition to the usual) spin-wave branches associated with variation of the magnitude of the moment vector.

Topics

Material Science and Thermodynamics Mathematical Approximation and Integration Spectral Theory in Mathematical Physics

Identifiers

DOI: 10.1063/10.0030146

Citations and references

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