Electron transport through a quantum wire coupled with a mesoscopic ring

TL;DR

This paper investigates electron transport in a quantum wire coupled with a mesoscopic ring under magnetic flux, analyzing effects of magnetic field, coupling strength, and electric field using an analytic tight-binding model.

Contribution

It introduces an analytic method to study electron transport in a quantum wire-ring system considering magnetic flux, coupling, and electric field effects.

Findings

Magnetic flux influences conductance oscillations.

Coupling strength affects electron transmission.

Electric field modifies transport properties.

Abstract

Electronic transport through a quantum wire sandwiched between two metallic electrodes and coupled to a quantum ring, threaded by a magnetic flux $\phi$, is studied. An analytic approach for the electron transport through the bridge system is presented based on the tight-binding model. The transport properties are discussed in three aspects: (a) presence of an external magnetic filed, (b) strength of the wire to electrode coupling, and (c) presence of in-plane electric field.