NONLINEAR CONVERSION OF MAGNETOELASTIC MODES IN A MAGNETOSTRICTIVE PLATE

Authors
PERNOD P PREOBRAZHENSKY V
Citation
P. Pernod et V. Preobrazhensky, NONLINEAR CONVERSION OF MAGNETOELASTIC MODES IN A MAGNETOSTRICTIVE PLATE, Journal of magnetism and magnetic materials, 185(1), 1998, pp. 127-130
Citations number
8
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
185
Issue
1
Year of publication
1998
Pages
127 - 130
Database
ISI
SICI code
0304-8853(1998)185:1<127:NCOMMI>2.0.ZU;2-U
Abstract
Longitudinal deformation of magnetostrictive plate induced by resonanc e transversal ultrasonic oscillations is studied on a sample of hemati te single crystal. Excitation of the fundamental longitudinal mode of frequency 81.565 kHz by modulated pumping of shear modes in the band 1 .06-1.16 MHz was observed. The experimental value of the modes convers ion efficiency kappa(exp) = 12 ppm(-1) is in agreement with the theory of giant magneto-elastic anharmonicity. Application of magneto-acoust ic detection for driving of magnetostrictive mechanical systems is dis cussed. (C) 1998 Elsevier Science B.V. All rights reserved.