Volume 70, Number 4, May 2005
|Page(s)||527 - 533|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||15 April 2005|
Parametric interaction of two acoustic waves in a crystal of molecular magnets
Institute for Physics of Microstructures, Russian Academy of Sciences Nizhny Novgorod 603950, GSP-105, Russia
2 Department of Physics, Nizhny Novgorod State University 23 Gagarin Avenue, Nizhny Novgorod 603950, Russia
Corresponding authors: email@example.com firstname.lastname@example.org
Accepted: 30 March 2005
The parametric interaction of two weak acoustic waves in a crystal of molecular magnets in the presence of a strong ac magnetic field has been studied theoretically. The frequencies of the ac magnetic field and the acoustic waves are equal and close to the transition frequency of the fundamental doublet. Equations for the amplitudes of the two coupled acoustic waves have been derived. We have shown that one acoustic wave input into the crystal can efficiently excite the other acoustic wave contrariwise propagating.
PACS: 75.45.+j – Macroscopic quantum phenomena in magnetic systems / 75.50.Xx – Molecular magnets / 43.35.+d – Ultrasonics, quantum acoustics, and physical effects of sound
© EDP Sciences, 2005
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