Promising materials of acoustoelectronics

The results of the investigation of multicomponent piezoelectric crystals of the group of galliumlanthanum silicate (langasite) are presented. The synthesis processes and the structure of crystals are investigated. The acoustic properties of the crystals are investigated using X-ray topography and diffractometry. The possibility of applying these piezoelectric crystals in high-temperature sensor devices based on surface acoustic waves is shown.