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The Long‐Wavelength Magnon Relaxation in Ferromagnetic Metals at T ⪅ T c
Author(s) -
Lutovinov V. S.
Publication year - 1987
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221390128
Subject(s) - magnon , condensed matter physics , ferromagnetism , laser linewidth , spin wave , spins , thermal conduction , relaxation (psychology) , electron , materials science , spin (aerodynamics) , atmospheric temperature range , scattering , physics , thermodynamics , optics , quantum mechanics , psychology , social psychology , laser , composite material
The spin wave (SW) relaxation processes in ferromagnetic metals are considered in the framework of the spin operator diagram technique in a wide range of temperatures. It is shown that at elevated temperatures T ⪅ T c the process of magnon absorption on the thermal fluctuations of localized d(f) spins with conduction electron spin flip plays an essential role equally with the process of SW−conduction electron scattering. The results obtained are in qualitative agreement with the experimental data on FMR linewidth.