Surface acoustic waves in layered piezoelectric medium loaded with viscous liquid
Journal
Japanese Journal of Applied Physics Part 1-Regular Papers Short Notes & Review Papers
Journal Volume
41
Journal Issue
8
Pages
5451-5457
Date Issued
2002
Author(s)
Abstract
In this paper, we present an analysis of the velocity dispersion and wave attenuation of a layered piezoelectric medium loaded with a viscous liquid. The eight-dimensional formalism of the surface wave and the recursive formula were adopted to obtain the impedance tensor of a piezoelectric layered half-space and that of viscous liquids. The dispersion equation of the surface waves in such a layered system was formulated under the continuity conditions at the solid-liquid interface. Numerical examples of half-space (lithium niobate), single-layered (lithium niobate/sapphire) and double-layered half-space (ST-cut quartz/lithium niobate/sapphire, lithium niobate/ST-cut quartz/sapphire) loaded with a viscous liquid are presented and discussed as well.
Subjects
Attenuation; Dispersion; Layered piezoelectric medium; Surface wave; Viscous liquid
Other Subjects
Acoustic dispersion; Acoustic impedance; Acoustic surface wave devices; Attenuation; Computational methods; Interfaces (materials); Lithium niobate; Matrix algebra; Tensors; Viscosity of liquids; Layered piezoelectric medium; Piezoelectric materials
Type
journal article