K. Shintani et H. Itoh, CONDUCTION-CONTROLLED DISPERSION OF SURFACE ACOUSTIC-WAVES IN III-V AND II-VI COMPOUND SEMICONDUCTORS - THE EFFECT OF DRIFT CURRENT, International journal of engineering science, 32(8), 1994, pp. 1271-1276
A formulation for analyzing surface acoustic waves in piezoelectric se
miconductors is given based on Maxwell's equations; drift current is t
aken into account, diffusion current being neglected. Dispersion curve
s are obtained for the surface acoustic waves in GaAs, ZnO, and CdS. I
t is seen that simple relaxation-type dispersions occur around dielect
ric relaxation frequencies in the same way as for plane waves.