Effect of sizes and polarizing magnetic field on the values of material constants of ferrimagnets in magnetomechanical resonance conditions

A mathematical model of magnetomechanical compression-extension oscillations of a ferrimagnet having the shape of a right parallelepiped in a polarizing magnetic field is constructed. The solution to the equation derived here makes it possible to determine the resonance frequencies of oscillations f...

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Bibliographic Details
Published in:Technical physics 2013-11, Vol.58 (11), p.1549-1553
Main Authors: Linchevskii, I. V., Petrishchev, O. N.
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
Physics
Physics and Astronomy
Theoretical and Mathematical Physics
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Summary:A mathematical model of magnetomechanical compression-extension oscillations of a ferrimagnet having the shape of a right parallelepiped in a polarizing magnetic field is constructed. The solution to the equation derived here makes it possible to determine the resonance frequencies of oscillations for various relations between the length and the cross section of the sample and for various values of the polarizing magnetic field. The results of computations for an yttrium ferrite-garnet sample are compared with the results of measurements. The experimental value of the elastic tensor component for yttrium ferrite-garnet is obtained.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784213110169