Propagation of Thermo-Elastodiffusive Surface Acoustic Waves in Semiconductors

Abstract

The paper is aimed at to investigate the propagation of thermoelastic diffusive surface waves in homogenous isotropic, thermally conducting semiconductor, half space materials. The secular equations governing the phase velocity, attenuation coefficient and other characteristics of the thermoelastic (ET) and elastodiffusive (EN) waves have been obtained. The waves are found to be dispersive in character and attenuated in space. The secular equations have been solved numerically for silicon (Si) semiconductor to obtain the profile of phase velocity and attenuation coefficient. The numerically simulated results have also been presented graphically.