Acousto-electric effect

There are two varieties of the original acousto-electric effect called the valley acoustoelectric effect and valley acoustoelectric Hall effect theoretically predicted in 2019 by Kalameitsev, Kovalev, and Savenko.^[3] These effects also represent nonlinear phenomena of generation of electric current in two-dimensional materials, such as transition metal dichalcogenide monolayers or graphene, located on a piezoelectric substrate by a propagating acoustic wave. The generated electric currents are proportional to the intensity of the acoustic wave and their directions are perpendicular to the acoustic wave vector.

• Physical acoustics
• Semiconductors
• Piezoelectricity
• Elastic waves