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The influence of electron-electron interaction on the temperature dependence of the magnon damping in disordered ferromagnetic metals

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
69
Issue
1
Identifiers
DOI: 10.1016/0038-1098(89)90015-x
Disciplines
  • Physics

Abstract

Abstract The temperature dependent part of magnon damping in disordered ferromagnetic metals is investigated within the framework of the spin operator diagram technique. The interference between the magnon electron interaction and the Coulomb one as well as the electron-impurity rescattering are considered. The calculations shows, that the contribution to the magnon relaxation rate due to this interference mechanism is of the hydrodynamic type γ k ∼ k zω k which depends on temperature as √ T for d=3, log( T) for d=2 and 1/√ T for d=1 ( d is the space dimensionality).

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