High degree of current rectification at nanoscale level

TL;DR

This paper demonstrates that a simple quantum wire with correlated potentials can achieve near-perfect current rectification over a wide voltage range, resilient to disorder, suggesting promising applications in nanoscale electronic devices.

Contribution

It introduces a straightforward quantum wire model with correlated site potentials that exhibits high rectification efficiency, a novel approach in nanoscale rectification studies.

Findings

Almost 100% rectification achieved in certain conditions

Rectification persists across various disorder configurations

Enhanced rectification with asymmetric wire-to-electrode coupling

Abstract

We address an unexpectedly large rectification using a simple quantum wire with correlated site potentials. The external electric field, associated with voltage bias, leads to unequal charge currents for two different polarities of external bias and this effect is further enhanced by incorporating the asymmetry in wire-to-electrode coupling. Our calculations suggest that in some cases almost cent percent rectification is obtained for a wide bias window. This performance is valid against disorder configurations and thus we can expect an experimental verification of our theoretical analysis in near future.