✦ LIBER ✦

Properties of Love waves in layered piezoelectric structures

✍ Scribed by Jiansheng Liu; Shitang He

Publisher: Elsevier Science
Year: 2010
Tongue: English
Weight: 322 KB
Volume: 47
Category: Article
ISSN: 0020-7683
DOI: 10.1016/j.ijsolstr.2009.06.018

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✦ Synopsis

Love waves propagating in a layered structure with an elastic layer deposited on a piezoelectric substrate are analytically investigated. We present a general dispersion equation that describes the properties of Love waves in the structure. A detailed discussion regarding the dispersion equation is presented, and the parameters for Love-mode sensors are also introduced. The properties of Love waves are illustrated by means of sample results for a layered structure with an SiO 2 layer sputtered on an ST-cut 90°X-propagating quartz substrate. Interestingly, we found that a threshold-normalized layer thickness existed for the fundamental Love mode in such a structure.

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