Effect of chiral anomaly on the circular dichroism and Hall angle in doped and tilted Weyl semimetals
arXiv:1903.03072 · doi:10.1103/PhysRevB.99.235134
Abstract
From the Kubo formula for transport in a tilted Weyl semimetal we calculate the absorptive part of the dynamic conductivity for both right and left handed circular polarized light. These depend on the real part of the longitudinal conductivity and the imaginary part of the transverse (Hall) conductivity. We include the effect of the chiral anomaly which pumps charge from negative to positive chirality node when the usual ${\bs E}\cdot{\bs B}$ term is included in the electrodynamics and obtain analytic expressions. To calculate the Hall angle we further provide expressions for the imaginary part of longitudinal and real part of the transverse conductivity and compare results with and without the pumping term. We also consider the case of a non centro symmetric Weyl semimetal in which the chiral nodes are displaced in energy by an amount . This leads to modification in dichroism and Hall angle which parallel the pumping case.
11 pages, 7 figures, to appear in PRB
References in corpus (12)
- Weyl semimetal phase in non-centrosymmetric transition metal monophosphides
- Chiral anomaly and transport in Weyl metals
- Sum Rules for the Optical and Hall Conductivity in Graphene
- Chiral anomaly and optical absorption in Weyl semimetals
- Quantum transport in Dirac materials: signatures of tilted and anisotropic Dirac and Weyl cones
- Plasmon mode as a detection of the chiral anomaly in Weyl semimetals
- Anomalous Nernst and Thermal Hall Effects in Tilted Weyl Semimetals
- Dynamic current-current susceptibility in 3D Dirac and Weyl semimetals
- Absorption of circular polarized light in tilted Type-I and II Weyl semimetals
- Anomalous Nernst effect in type-II Weyl semimetals
- Anisotropic chiral magnetic effect from tilted Weyl cones
- Disorder in tilted Weyl semimetals from a renormalization group perspective