Influence of the external electric field on propagation of lamb waves in piezoelectric plates

The influence of the electric field on the properties of the Lamb and SH-waves in piezoelectric Bi
₁₂
GeO
₂₀
and La
₃
Ga
₅
SiO1
₄
crystal plates has been investigated. Using basic equations and boundary conditions, the formulas for computer simulation have been obtained. The effect of acoustic modes hybridization has been considered.