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Effect of an Electromagnetic Wave on the Magnon Damping in Ferromagnetic Semiconductors
Author(s) -
Miranda L. C. M.
Publication year - 1973
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.2220600217
Subject(s) - magnon , condensed matter physics , physics , ferromagnetism , electron , spin wave , dispersion (optics) , quantum electrodynamics , dispersion relation , magnetic damping , electromagnetic radiation , quantum mechanics , vibration
On the assumption of a weak electron‐magnon interaction, a dispersion equation is obtained for magnons in the presence of an electromagnetic wave. It is shown that the correction added to the frequency and damping of a magnon on account of interaction with the electrons may undergo oscillations. Some possible consequences of this effect are discussed, particularly, in connection with the problem of spin wave amplification.