Nonlinear transport in $\beta-$Na$_{0.33}$V$_2$O$_5$

TL;DR

This study investigates the nonlinear electrical transport properties of the charge ordering compound $eta$-Na$_{0.33}$V$_2$O$_5$ across a wide temperature range, revealing charge density wave behavior below the metal-insulator transition.

Contribution

It provides experimental evidence of nonlinear charge density wave transport in $eta$-Na$_{0.33}$V$_2$O$_5$ and discusses the results using a classical domain model.

Findings

Nonlinear conductivity observed below 136 K

Charge density wave behavior identified

Transport explained by a classical domain model

Abstract

Transport properties of the charge ordering compound $\beta-$Na$_{0.33}$V$_2$O$_5$ are studied in the temperature range from 30 K to 300 K using current driven DC conductivity experiments. It is found that below the metal-insulator transition temperature (T$_{mi}$ = 136 K) this material shows a typical nonlinear charge density wave behavior. The observed conductivity is discussed in terms of a classical domain model for charge density wave transport.