# Magnetotransport in Weyl semimetal nanowires

## TL;DR

This paper theoretically investigates how magnetic fields affect electronic transport in Weyl semimetal nanowires, revealing that the orientation of the magnetic field dramatically influences conductance through surface and bulk state interactions.

## Contribution

It provides a detailed theoretical analysis of the magnetotransport in Weyl semimetal nanowires, highlighting the role of magnetic field orientation on surface-bulk state hybridization and conductance.

## Key findings

- Perpendicular magnetic field hybridizes surface states into flat Landau levels, reducing conductance.
- Parallel magnetic field adds dispersive Landau levels, increasing conductance.
- Magnetic field orientation critically controls transport properties in Weyl semimetal nanowires.

## Abstract

We theoretically study the band structure and the electronic transport in the Weyl semimetal nanowires in magnetic fields, and demonstrate that the interplay of the Fermi-arc surface states and the bulk Landau levels plays a crucial role in the magnetotransport. We show that a magnetic field perpendicular to the surface immediately hybridizes the counter-propagating surface modes into a series of dispersionless 0th Landau levels, and it leads to a significant reduction of the traveling modes and a rapid decay of the conductance. On the contrary, a magnetic field parallel to the wire adds linearly-dispersed 0th Landau levels to the traveling modes and increases the conductance.