DocumentCode :
998285
Title :
Self-focussing of sound wave in magnet with high effective anharmonicity
Author :
Ozhogi, V.I. ; Manin, D. Yu ; Petviashvili, V.I. ; Lebedev, A. Yu
Author_Institution :
Kurchatov Institute of Atomic Energy, Moscow, USSR
Volume :
19
Issue :
5
fYear :
1983
fDate :
9/1/1983 12:00:00 AM
Firstpage :
1977
Lastpage :
1979
Abstract :
The self-focussing of sound beams related with the special type of acoustic dispersion in some antiferromagnets possesing a "soft" magnetic mode is theoretically examined. The considerable acoustic nonlinearity of antiferromagnets is expected to facilitate the experimental observation of the self-focussing effect. Ultrasound ( 
MHz) strains as small as 
are sufficient for experiment with α-Fe2 O3 or TmFeO3 .
MHz) strains as small as are sufficient for experiment with α-FeKeywords :
Acoustic propagation, dispersive media; Antiferromagnetic materials/devices; Magnetoelasticity; Acoustic beams; Antiferromagnetic materials; Dispersion; Laplace equations; Magnetic resonance; Magnetoelasticity; Magnetostriction; Nonlinear equations; Soft magnetic materials; Solitons;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1983.1062754
Filename :
1062754
Link To Document :
