Temperature anomalies in the nonlinear magnetoacoustic properties of manganese-zinc spinel single crystals |
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Authors: | L. K. Zarembo S. N. Karpachev T. A. Ludzskaya I. V. Saenko A. I. Yafasov |
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Affiliation: | (1) M. V. Lomonosov Moscow State University, 119899 Moscow, Russia |
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Abstract: | The absorption of a magnetoelastic wave and the nonlinear resonance interaction of counterpropagating magnetoelastic waves in a manganese-zinc spinel single crystal have been investigated near the conjectured spin-reorientational transition. The convolution signal vanishes near T tr=291 K; this is explained by the relaxational dynamics of the magnetic mode near the transition. The increase in the strength of the field corresponding to the maximum of the convolution with decreasing temperature is explained by a change in the demagnetizing field. Fiz. Tverd. Tela (St. Petersburg) 39, 652–655 (April 1997) |
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