Surface acoustic wave investigations of the metal-to-insulator transition of V2O3 thin films on lithium niobate

TL;DR

This study uses surface acoustic wave techniques to explore the temperature-dependent electrical, dielectric, and elastic properties of V2O3 thin films during their metal-insulator transition, revealing detailed insights into this phase change.

Contribution

It introduces a novel application of SAW measurements to analyze the phase transition in V2O3 thin films on a piezoelectric substrate.

Findings

Attenuation and sound velocity vary with temperature.

Insights into electrical and elastic property changes during transition.

Temperature range from 260K to 10K explored.

Abstract

Thin V2O3 films were deposited on a piezoelectric substrate by electron-beam evaporation. Surface acoustic waves (SAW) were generated by interdigital-transducers (IDTs). The attenuation and sound velocity was investigated from 260K to 10K, providing an insight into the temperature dependent electrical, dielectrical and elastic properties of V2O3 at the metal to insulator transition.