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Propagation of fast leaky surface waves in a system of metal electrodes on a lithium tetraborate crystal

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Abstract

Dispersion curves are calculated for fast leaky surface acoustic waves in a periodic system of metal electrodes on a lithium tetraborate crystal. The periodic Green’s function analysis is applied to the piezoelectric halfspace. To allow for the mechanical properties of the electrodes, a perturbation method is developed that is accurate to within the first order of the electrode thickness-to-period ratio, and the finite-element method is used to investigate the higher-order effects. The reflection factor of a system of two open electrodes is shown to have a minimum at a certain electrode thickness. The fast leaky-to-Rayleigh wave conversion factor and the Rayleigh wave reflection factor are studied as functions of the electrode thickness.

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Authors and Affiliations

  1. Institute of Radio Engineering and Electronics, Russian Academy of Sciences, pl. Akademika Vvedenskogo 1, Fryazino, Moscow oblast, 141120, Russia

    V. I. Grigor’evskii & Yu. V. Gulyaev

Authors
  1. V. I. Grigor’evskii
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  2. Yu. V. Gulyaev
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__________

Translated from Akusticheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Zhurnal, Vol. 46, No. 4, 2000, pp. 473–479.

Original Russian Text Copyright © 2000 by Grigor’evski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \), Gulyaev.

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Grigor’evskii, V.I., Gulyaev, Y.V. Propagation of fast leaky surface waves in a system of metal electrodes on a lithium tetraborate crystal. Acoust. Phys. 46, 405–410 (2000). https://doi.org/10.1134/1.29901

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