Electron Transport in a Multi-Channel One-Dimensional Conductor: Molybdenum Selenide Nanowires

TL;DR

This study investigates electron transport in Molybdenum Selenide nanowires with varying chain numbers, revealing power-law behaviors influenced by electron interactions and channel count, advancing understanding of 1D conductors.

Contribution

It provides experimental insights into how electron-electron interactions affect transport in multi-channel 1D nanowires, a less explored area.

Findings

Power-law dependence of conductance and current on temperature and bias voltage.

Exponents decrease with increasing number of conducting channels.

Relation of exponents to electron-electron interaction parameters.

Abstract

We have measured electron transport in small bundles of identical conducting Molybdenum Selenide nanowires where the number of weakly interacting one-dimensional chains ranges from 1-300. The linear conductance and current in these nanowires exhibit a power-law dependence on temperature and bias voltage respectively. The exponents governing these power laws decrease as the number of conducting channels increase. These exponents can be related to the electron-electron interaction parameter for transport in multi-channel 1-D systems with a few defects.