Current response of ac-driven nanoelectromechanical systems in single-electron tunneling regime

TL;DR

This paper studies how electric current in a single-electron tunneling device interacts with an ac-driven nanomechanical oscillator, revealing resonant and anti-resonant behaviors and multiple frequency resonances.

Contribution

It introduces a detailed analysis of current response in ac-driven nanoelectromechanical systems within the single-electron tunneling regime, highlighting novel resonance phenomena.

Findings

Current exhibits resonant and anti-resonant responses to external frequency.

Main resonance is accompanied by an additional resonance at half the external frequency.

The study enhances understanding of electromechanical interactions at the nanoscale.

Abstract

We investigate electric current in a single-electron tunnelling device weakly coupled to an ac-driven underdamped harmonic nanomechanical oscillator. In the linear regime, the current can respond to the external frequency in a resonant as well as in an anti-resonant fashion. The main resonance is accompanied by an additional resonance at a half of the external frequency.