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On Magnon Damping in Antiferromagnets in Zero External Magnetic Fields
Author(s) -
Breus S. A.,
Sobolev V. L.
Publication year - 1980
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.2220980241
Subject(s) - magnon , condensed matter physics , physics , dipole , hamiltonian (control theory) , antiferromagnetism , magnetic damping , amplitude , zero (linguistics) , quantum electrodynamics , zero temperature , quantum mechanics , ferromagnetism , mathematics , vibration , mathematical optimization , linguistics , philosophy
It is shown that the dipole–dipole part of the antiferromagnet Hamiltonian makes a small contribution both to the amplitudes of magnon–magnon interactions and to the coefficients of magnon damping. Possible relaxation mechanisms explaining the temperature‐independent part of damping, which is observed in the experiment, are proposed.