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- Title
Three-phonon coupled excitations in an antiferromagnet.
- Authors
Preobrazhenskiĭ, V. L.; Rudenko, V. V.; Pernod, P.; Ozhogin, V. I.
- Abstract
Results of an experimental observation of the generation of three-phonon coupled excitations in an α-Fe2O3 high-temperature antiferromagnet in a transverse electromagnetic pumping field are presented. The underthreshold and superthreshold generation regimes are studied depending on the phase shift of pumping with respect to the phase of the three-phonon acoustic field correlator. The results agree well with the theory of the resonant nonlinear interaction of quasi-phonons with an electromagnetic field.
- Subjects
ANTIFERROMAGNETISM; ELECTROMAGNETIC fields; PHASE shift (Nuclear physics); PHONONS; MAGNETS
- Publication
JETP Letters, 2007, Vol 86, Issue 5, p348
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364007170158