Electron transport through a mesoscopic metal-CDW-metal junction

TL;DR

This paper investigates electron transport in a finite charge density wave (CDW) junction, revealing how conductance varies with temperature and mapping the problem to fractional charge transport in correlated dielectrics.

Contribution

It introduces a novel analysis of charge transport in a finite CDW system and connects it to fractional charge transport models, expanding understanding of mesoscopic dielectric junctions.

Findings

Conductance depends significantly on temperature.

Transport can be modeled as fractional charge movement.

The study extends previous models to finite-length systems.

Abstract

In this work we study the transport properties of a finite Peierls-Fr\"ohlich dielectric with a charge density wave of the commensurate type. We show that at low temperatures this problem can be mapped onto a problem of fractional charge transport through a finite-length correlated dielectric, recently studied by Ponomarenko and Nagaosa [Phys. Rev. Lett {\bf 81}, 2304 (1998)]. The temperature dependence of conductance of the charge density wave junction is presented for a wide range of temperatures.