ANOMALOUS DECREASE OF LONGITUDINAL SOUND-VELOCITY NEAR MAGNETIC PHASE-TRANSITION IN MAGNETS

Authors
BUCHELNIKOV VD SHAVROV VG
Citation
Vd. Buchelnikov et Vg. Shavrov, ANOMALOUS DECREASE OF LONGITUDINAL SOUND-VELOCITY NEAR MAGNETIC PHASE-TRANSITION IN MAGNETS, Journal of magnetism and magnetic materials, 140, 1995, pp. 1587-1589
Citations number
5
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
140
Year of publication
1995
Part
3
Pages
1587 - 1589
Database
ISI
SICI code
0304-8853(1995)140:<1587:ADOLSN>2.0.ZU;2-G
Abstract
The anomalous decrease of the longitudinal sound velocity down to zero in ferromagnets is theoretically predicted. This phenomenon takes pla ce at the point of magnetic first-order phase transition. The dispersi on law of longitudinal sound has a cubic dependence. Such behaviour is caused by interaction between sound and relaxational oscillations of magnetization.