Lamb waves dispersion curves for diamond based piezoelectric layered structure | Научно-инновационный портал СФУ

Lamb waves dispersion curves for diamond based piezoelectric layered structure

Тип публикации: статья из журнала

Год издания: 2016

Идентификатор DOI: 10.1063/1.4943945

Ключевые слова: Acoustic wave propagation, Acoustic waves, Diamonds, Frequency response, Piezoelectricity, Surface waves, Ultrasonic waves, Acoustical signals, Amplitude frequency response, Dispersion curves, Dispersive curves, Elastic displacements, FEM analysis, Lamb modes, Layered Structures, Dispersion (waves)

Аннотация: The presence of spurious peaks in the amplitude-frequency response of diamond based piezoelectric layered structure was shown. Excitation of such peaks results in deterioration of an useful acoustical signal. It was shown that such spurious peaks should be associated with Lamb waves in a layered structure. By means of FEM analysis, the propagation of acoustic waves of different types in the piezoelectric layered structure "Al/AlN/Mo/(100) diamond" has been investigated in detail. By analyzing the elastic displacement patterns at frequencies from 0 up to 250 MHz, a set of all the possible acoustic waves, especially Lamb modes, have been studied, and dispersive curves of phase velocity have been plotted. A revised classification of Lamb modes has been introduced. (C) 2016 AIP Publishing LLC.

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Издание

Журнал: APPLIED PHYSICS LETTERS

Выпуск журнала: Vol. 108, Is. 11

ISSN журнала: 00036951

Место издания: MELVILLE

Издатель: AMER INST PHYSICS

Авторы

  • Sorokin B.P. (Moscow Institute of Physics and Technology)
  • Kvashnin G.M. (Technological Institute for Superhard and Novel Carbon Materials)
  • Telichko A.V. (Moscow Institute of Physics and Technology)
  • Novoselov A.S. (Moscow Institute of Physics and Technology)
  • Burkov S.I. (Siberian Federal University)

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