Current modulation at nano-scale level: A theoretical study

TL;DR

This paper investigates the theoretical potential of using mesoscopic rings threaded by time-varying magnetic flux for current modulation at the nano-scale, providing numerical analysis within a tight-binding model.

Contribution

It introduces a theoretical framework for current modulation using mesoscopic rings with magnetic flux, supported by Green's function calculations.

Findings

Numerical results show effective current modulation at nano-scale.

Two-terminal conductance varies with magnetic flux.

Potential application in nano-electronic device fabrication.

Abstract

We explore the possibilities of current modulation at nano-scale level using mesoscopic rings. A single mesoscopic ring or an array of such rings is used for current modulation where each ring is threaded by a time varying magnetic flux $\phi$ which plays the central role in the modulation action. Within a tight-binding framework, all the calculations are done based on the Green's function formalism. We present numerical results for the two-terminal conductance and current which support the essential features of current modulation. The analysis may be helpful in fabricating mesoscopic or nano-scale electronic devices.