Surface acoustic wave investigations of the metal-to-insulator transition of V_2O_3 thin films on lithium niobate

摘要

Thin V_2O_3 films were deposited on a piezoelectric substrate by electron-beam evaporation. Surface acoustic waves were generated by interdigital transducers. The attenuation and sound velocity were investigated from 260 to 10 K, providing an insight into the temperature-dependent electrical, dielectrical, and elastic properties of V_2O_3 at the metal-to-insulator transition.