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Hybridization of acoustic waves in piezoelectric plates

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Abstract

The conditions for hybridization of the zero-order and high-order acoustic waves propagating in a piezoelectric crystal plate have been studied. The dependence of the phase velocity of the hybrid waves on the parameter hf (h is the plate thickness and f is the wave frequency) is established for the potassium niobate and lithium niobate plates possessing various crystallographic orientations and conductivities. It is found that hybridization takes place when the conductivity of a thin surface layer exceeds a certain critical value, which can vary within broad limits depending on the plate material and orientation. The degree of dispersive repulsion of the coupled modes grows with increasing electromechanical coupling coefficient.

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Authors and Affiliations

  1. Saratov Branch, Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Saratov, Russia

    I. A. Borodina, B. D. Zaitsev, I. E. Kuznetsova, A. A. Teplykh & V. V. Shurygin

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  1. I. A. Borodina
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  2. B. D. Zaitsev
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  3. I. E. Kuznetsova
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  4. A. A. Teplykh
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  5. V. V. Shurygin
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 29, No. 18, 2003, pp. 75–80.

Original Russian Text Copyright © 2003 by Borodina, Za\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \)tsev, Kuznetsova, Teplykh, Shurygin.

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Borodina, I.A., Zaitsev, B.D., Kuznetsova, I.E. et al. Hybridization of acoustic waves in piezoelectric plates. Tech. Phys. Lett. 29, 781–783 (2003). https://doi.org/10.1134/1.1615564

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  • DOI: https://doi.org/10.1134/1.1615564

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