Transports of Disordered Carbon Nanotubes with Long Range Coulomb Interaction

TL;DR

This paper investigates how long-range Coulomb interactions affect the transport properties of disordered carbon nanotubes, revealing that certain scattering processes cannot coexist in the localized regime.

Contribution

It introduces a combined approach using the memory functional method and renormalization group analysis to study transport and localization in disordered nanotubes with Coulomb interactions.

Findings

Resistivity and optical conductivity are calculated considering Coulomb interactions.

Backward scattering processes of intra-valley and inter-valley cannot coexist in the localized regime.

Long-range Coulomb interactions significantly influence localization behavior.

Abstract

Transport properties of disordered carbon nanotubes are investigated with including long range Coulomb interactions. The resistivity and optical conductivity are calculated by using the memory functional method. In addition, the effect of localization is taken into account by use of the renormalization group analysis and it is shown that the backward scattering of the intra-valley and that of the inter-valley cannot coexist in the localized regime.