ROTATORY INVARIANT-THEORY OF MAGNETOELAST IC WAVES IN STRONGLY ANISOTROPIC EASY-PLANE FERROMAGNET

Authors
VITEBSKY IM LAVRINENKO NM MAJOROVA AN MITSAY YN FRIDMAN YA
Citation
Im. Vitebsky et al., ROTATORY INVARIANT-THEORY OF MAGNETOELAST IC WAVES IN STRONGLY ANISOTROPIC EASY-PLANE FERROMAGNET, UKRAINSKII FIZICHESKII ZHURNAL, 39(5-6), 1994, pp. 597-603
Citations number
17
Categorie Soggetti
Physics
Journal title
UKRAINSKII FIZICHESKII ZHURNAL → ACNP
ISSN journal
02023628
Volume
39
Issue
5-6
Year of publication
1994
Pages
597 - 603
Database
ISI
SICI code
0202-3628(1994)39:5-6<597:RIOMIW>2.0.ZU;2-L
Abstract
Spectra of bound magnetoelastic waves in strongly anisotropic easy-pla ne ferromagnets in ferromagnetic and quadrupole phases are obtained. I t is shown that the quasiphonon mode softens on lilies of the phase tr ansition from ferromagnetic to quadrupole-ferromagnetic phase and from quadrupole phase to quadrupole-ferromagnetic phase. Taking into consi deration the rotatory invariance leads to the effect of non-reciprocit y for the speed of sound in a ferromagnetic crystal.