Abstract
The theoretical and experimental studies of the nonlinear magnetoelectric effect in composite multiferroics in the low-frequency spectral region and in the electromechanical resonance region have been performed. It has been shown that such structures demonstrate a nonlinear magnetoelectric effect, which is quadratic in ac magnetic field strength at weak magnetic fields. In the region of the electromechanical resonance, the resonance excitation of an electric field occurs by means of ac magnetic field at a frequency lower than the resonance frequency by a factor of two. In the low-frequency spectral region, there is a difference of amplitude values of two neighboring voltage maxima due to the superposition of signals from the linear and nonlinear effects, and the difference is proportional to the dc magnetic field strength in weak fields. The results of the experimental study of the two-layer permendur-lead zirconate titanate structure are presented.
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Original Russian Text © D.A. Filippov, V.M. Laletin, T.O. Firsova, 2014, published in Fizika Tverdogo Tela, 2014, Vol. 56, No. 5, pp. 944–948.
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Filippov, D.A., Laletin, V.M. & Firsova, T.O. Nonlinear magnetoelectric effect in composite multiferroics. Phys. Solid State 56, 980–984 (2014). https://doi.org/10.1134/S1063783414050096
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DOI: https://doi.org/10.1134/S1063783414050096