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Electromagnetic excitation of longitudinal and shear ultrasonic waves in thin films of yttrium iron garnet

I.E. Gospodchikova, V.M. Sarnatsky

Memoirs of the Faculty of Physics 2013. N 6.

  • Article
Annotation

The influence of geometrical dimensions of the yttrium-iron garnet plate (thickness), geometry and intensity of applied bias and alternating magnetic fields on the efficiency of ultrasound generation is researched. Experiments revealed resonant-dimensional effects, which cannot be described in terms of existing theory. A hypothesis of involvement of domain borders oscillations into ultrasound generation is suggested.

Received: 2013 June 12
Approved: 2013 December 23
PACS:
40.00.00 ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS
43.00.00 Acoustics
43.35.-c Ultrasonics, quantum acoustics, and physical effects of sound
43.35.Yb Ultrasonic instrumentation and measurement techniques
Authors
I.E. Gospodchikova, V.M. Sarnatsky
St. Petersburg State University, Department of Physics, Department of Solid State Physics, Russian 198504 St. Petersburg street. Ulyanovsk 1
Issue 6, 2013

Moscow University Physics Bulletin

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