Work

Piezoelectric Electromechanical Coupling in Nanomechanical Resonators with a Two-Dimensional Electron Gas

Year: 2016

Type: article

Abstract: The electrical response of a two-dimensional electron gas to vibrations of a nanomechanical cantilever containing it is studied. Vibrations of perpendicularly oriented cantilevers are experimentally shown to oppositely change the conductivity near their bases. This indicates the piezoelectric nature of electromechanical coupling. A physical model is developed, which quantitatively explains the experiment. It shows that the main origin of the conductivity change is a rapid change in the mechanical stress on the boundary between suspended and nonsuspended areas, rather than the stress itself.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.117.017702

Authors: A. A. Shevyrin, A. G. Pogosov, A. K. Bakarov, A. A. Shklyaev

Institutions: Novosibirsk State University, Institute of Semiconductor Physics

Language: English

Topic: Acoustic Wave Resonator Technologies

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funder: Russian Foundation for Basic Research

Awards: G1147834440, G3849627975, G3971990430