Calculation of thermostable directions and the influence of bias electric field on the propagation of the Lamb and SH waves in langasite single crystal plates

TL;DR

This paper uses computer simulations to analyze how a DC electric field affects Lamb and SH wave propagation in langasite crystals, identifying cuts with thermostability and strong electromechanical coupling.

Contribution

It introduces a computational approach to determine thermostable wave propagation directions and the impact of bias electric fields in langasite plates.

Findings

Certain cuts exhibit thermostability under electric fields.

The influence of electric fields on wave delay temperature coefficients was quantified.

Optimal cuts with strong electromechanical coupling were identified.

Abstract

Paper is presented the results of computer simulation. Effect of the dc electric field influence on the propagation of Lamb and SH waves and its temperature coefficients of delay in piezoelectric langasite crystal plate for a lot of cuts and directions have been calculated. There were found the cuts possessing the thermostability and sufficient electromechanical coupling.