Project supported by the National Natural Science Foundation of China(Nos.12232007,12102141,U21A20430,and 11972164);the Chinese Postdoctoral Science Foundation(No.2022M711252)。
The propagation of an elastic wave(EW)in a piezoelectric semiconductor(PSC)subjected to static biasing fields is investigated.It is found that there exist two coupling waves between electric field and charge carriers....