# Magneto-optical conductivity of double Weyl semimetals

## TL;DR

This paper studies the magneto-optical response of double Weyl semimetals, revealing anisotropic conductivity and resonant peaks that scale with magnetic field strength, considering various physical effects.

## Contribution

It provides a detailed analysis of the anisotropic magneto-optical conductivity in double Weyl semimetals, including the effects of chemical potential, temperature, impurities, and symmetry breaking.

## Key findings

- Resonant peaks in optical conductivity scale linearly with magnetic field strength.
- Optical conductivity exhibits anisotropy with distinct background behaviors.
- Chemical potential, temperature, and impurities significantly influence the optical response.

## Abstract

We investigate the magneto-optical response of double Weyl semimetals whose energy dispersion is intrinsically anisotropic. We find that in the presence of a magnetic field, the most salient feature of the optical conductivity is a series of resonant peaks with the corresponding frequencies scaling linearly with the strength of the magnetic field. In addition, the optical conductivity is found to be anisotropic, with two of the three longitudinal components residing at a linear background and the remaining one at a constant background. The effects of chemical potential, temperature, impurity scattering, and particle-hole symmetry breaking on the optical conductivity are also studied.