Absorption of circular polarized light in tilted Type-I and II Weyl semimetals

Abstract

We calculate the A.C. optical response to circularly polarized light of a Weyl semimetal (WSM) with varying amounts of tilt of the Dirac cones. Both type-I and II (overtilted) WSM are considered in a continuum model with broken time reversal (TR) symmetry. The Weyl nodes appear in pairs of equal energies but of opposite momentum and chirality. For type-I the response of a particular node to right (RHP) and left (LHP) hand polarized light are distinct only in a limited range of photon energy $\Omega$, $\frac{2}{1+C_2/v}<\frac{\Omega }{\mu }<\frac{2}{1-C_2/v}$ with $\mu$ the chemical potential and $C_2$ the tilt associated with the positive chirality node assuming the two nodes are oppositely tilted. For the over tilted case (type-II) the same lower bound applies but there is no upper bound. If the tilt is reversed the RHP and LHP response are also reversed. We present corresponding results for the Hall angle.

arXiv comment9 pages 7 figures

References in corpus (42)

• Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
• Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
• Type-II Weyl Semimetals
• Weyl Semimetal in a Topological Insulator Multilayer
• Experimental discovery of Weyl semimetal TaAs
• Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs
• Chern semi-metal and Quantized Anomalous Hall Effect in HgCr2Se4
• Observation of Weyl nodes in TaAs
• Universal dynamical conductance in graphite
• Discovery of a Weyl Fermion semimetal state in NbAs
• Topological response in Weyl semimetals and the chiral anomaly
• Quantum Oscillations from Surface Fermi-Arcs in Weyl and Dirac Semi-Metals
• Dirac vs. Weyl in topological insulators: Adler-Bell-Jackiw anomaly in transport phenomena
• Transport evidence for Fermi-arc mediated chirality transfer in the Dirac semimetal Cd${}_3$As${}_2$
• Chiral anomaly and transport in Weyl metals
• Observation of Weyl nodes and Fermi arcs in TaP
• Experimental Realization of Type-II Dirac Fermions in PdTe${}_2$ Superconductor
• On the universal AC optical background in graphene
• Predicted Unusual Magnetoresponse in Type-II Weyl Semimetals
• Optical spectroscopy study of three dimensional Dirac semimetal ZrTe${}_5$
• Nontrivial Berry phase and type II Dirac transport in layered material PdTe2
• Magnetic breakdown and Klein tunneling in a type-II Weyl semimetal
• Optical evidence for a Weyl semimetal state in pyrochlore Eu2Ir2O7
• Chiral anomaly and optical absorption in Weyl semimetals
• Three-dimensional Dirac fermions in quasicrystals as seen via optical conductivity
• Optical Signatures of Weyl Points in TaAs
• Magnetic-field-induced relativistic properties in type-I and type-II Weyl semimetals
• Intrinsic Anomalous Hall Effect in Type-II Weyl Semimetals
• Interband optical conductivity of the [001]-oriented Dirac semimetal Cd3As2
• Conductivity of suspended and non-suspended graphene at finite gate voltage
• Magnetic susceptibility in three-dimensional nodal semimetals
• Optical Conductivity of Weyl Semimetals and Signatures of the Gapped Semimetal Phase Transition
• Effect of Holstein phonons on the electronic properties of graphene
• Anomalous Hall Effect in type-I Weyl metals
• Low frequency optical conductivity in graphene and in other scale-invariant two-band systems
• Effect of electron-phonon interaction on spectroscopies in graphene
• Electrodynamic response of type II Weyl semimetals
• Hexagonal warping on optical conductivity of surface states in Topological Insulator Bi_{2}Te_{3}
• Disorder Induced Phase Transitions of Type-II Weyl Semimetal
• Discovery of a Weyl Semimetal in non-Centrosymmetric Compound TaAs
• Optical spectral weight: comparison of weak and strong spin-orbit coupling
• Dielectric screening of surface states in a topological insulator

Cited by in corpus (29)

• Light control with Weyl semimetals
• Room-Temperature Terahertz Anomalous Hall Effect in Weyl Antiferromagnet Mn${}_3$Sn Thin Films
• Epsilon-Near-Zero Response and Tunable Perfect Absorption in Weyl Semimetals
• Klein tunneling and electron optics in Dirac-Weyl fermion systems with tilted energy dispersion
• Magnetic textures and dynamics in magnetic Weyl semimetals
• Giant optical activity and Kerr effect in type-I and type-II Weyl semimetals
• Circular and magnetoinduced photocurrents in Weyl semimetals
• Doping and tilting on optics in noncentrosymmetric multi-Weyl semimetals
• Thermo-electric transport properties of Floquet multi-Weyl Semimetals
• Large enhancement of conductivity in Weyl semimetals with tilted cones: Pseudorelativity and linear response
• Waveguide Modes in Weyl Semimetals with Tilted Dirac Cones
• Signatures of Complex Optical Response in Casimir Interactions of Type I and II Weyl Semimetals
• Evolution of Pair Correlation Symmetries and Supercurrent Reversal in Tilted Weyl Semimetals
• Understanding the three-dimensional quantum Hall effect in generic multi-Weyl semimetals
• Photo-induced anomalous Hall effect in the type-II Weyl-semimetal WTe2 at room-temperature
• Anisotropic chiral magnetic effect from tilted Weyl cones
• Imaginary part of Hall conductivity in tilted doped Weyl semimetal with both broken time reversal and inversion symmetry
• Signatures of Lifshitz transition in the optical conductivity of two-dimensional tilted Dirac materials
• Perpendicular Andreev reflection: Solid state signature of black hole horizon
• Magneto-optical Kerr effect and signature of the chiral anomaly in a Weyl semimetal in a magnetic field
• Anisotropic fixed points in Dirac and Weyl semimetals
• Anomalous DC Hall response in noncentrosymmetric tilted Weyl semimetals
• Effects of spatial dimensionality and band tilting on the longitudinal optical conductivities in Dirac bands
• Effect of chiral anomaly on the circular dichroism and Hall angle in doped and tilted Weyl semimetals
• Distinct quasiparticle interference patterns for surface impurity scattering on various Weyl semimetals
• Weyl systems: anomalous transport normally explained
• Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in Weyl semimetals with tilted energy dispersion
• Intra-cell dynamics and cyclotron motion without magnetic field
• Giant and Broadband Circular Dichroism from Particle-Hole Symmetry Breaking in Weyl Semimetals