Nonlinear magnetotransport in interacting chiral nanotubes

TL;DR

This paper develops a theoretical model for nonlinear magnetotransport in chiral nanotubes with interactions, revealing a unique current component dependent on magnetic field and chirality.

Contribution

It extends Luttinger liquid theory to include trigonal warping and chirality, deriving a novel current component in interacting chiral nanotubes.

Findings

Current contribution is even in voltage and odd in magnetic field.

The effect appears only in chiral tubes with interactions.

The model predicts measurable nonlinear magnetotransport phenomena.

Abstract

Nonlinear transport through interacting single-wall nanotubes containing a few impurities is studied theoretically. Extending the Luttinger liquid theory to incorporate trigonal warping and chirality effects, we derive the current contribution $I_e$ {\sl even} in the applied voltage $V$ and {\sl odd} in an orbital magnetic field $B$, which is non-zero only for chiral tubes and in the presence of interactions.