Electronic transport in a mesoscopic ring

TL;DR

This paper investigates electron transport in a mesoscopic ring using Green's function formalism, focusing on how interface geometry, coupling strength, and magnetic flux influence transport properties.

Contribution

It introduces a parametric tight-binding model approach to analyze mesoscopic ring transport, considering multiple physical factors.

Findings

Transport properties depend on interface geometry.

Coupling strength significantly affects conductance.

Magnetic flux modulates electron flow.

Abstract

Electron transport properties of a non-interacting mesoscopic ring sandwiched between two metallic electrodes are investigated by the use of Green's function formalism. We introduce a parametric approach based on the tight-binding model to study the transport properties. The electronic transport characteristics are investigated in three aspects: (a) ring-electrode interface geometry, (b) coupling strength of the ring to the electrodes and (c) magnetic flux threaded by the ring.