Helicons in Weyl semimetals

Abstract

Helicons are transverse electromagnetic waves propagating in three-dimensional (3D) electron systems subject to a static magnetic field. We present a theory of helicons propagating through a 3D Weyl semimetal. Our approach relies on the evaluation of the optical conductivity tensor from semiclassical Boltzmann transport theory, with the inclusion of certain Berry curvature corrections that have been neglected in the earlier literature (such as the one due to the orbital magnetic moment). We demonstrate that the axion term characterizing the electromagnetic response of Weyl semimetals dramatically alters the helicon dispersion with respect to that in nontopological metals. We also discuss axion-related anomalies that appear in the plasmon dispersion relation.

5 pages, 1 figure

References in corpus (12)

• Experimental discovery of Weyl semimetal TaAs
• Theoretical Discovery/Prediction: Weyl Semimetal states in the TaAs material (TaAs, NbAs, NbP, TaP) class
• Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs
• Weyl semimetal phase in non-centrosymmetric transition metal monophosphides
• Observation of Weyl nodes in TaAs
• Topological response in Weyl semimetals and the chiral anomaly
• Negative longitudinal magnetoresistance in Dirac and Weyl metals
• Topological electronic structure and Weyl semimetal in the TlBiSe${}_2$ class of semiconductors
• Plasmon mode as a detection of the chiral anomaly in Weyl semimetals
• Magnetotransport of single crystalline YSb
• Magnetotransport of single crystalline NbAs
• Plasmon signature in Dirac-Weyl liquids

Cited by in corpus (47)

• Dielectric response and novel electromagnetic modes in three-dimensional Dirac semimetal films
• Semiclassical theory of nonlinear magneto-optical responses with applications to topological Dirac/Weyl semimetals
• Large nonreciprocal absorption and emission of radiation in type-I Weyl semimetals with time reversal symmetry breaking
• Giant tunable nonreciprocity of light in Weyl semimetals
• Surface plasmon polaritons in topological Weyl semimetals
• Transport in two-dimensional topological materials: recent developments in experiment and theory
• Chiral anomaly and longitudinal magnetotransport in type-II Weyl semimetals
• Anomalous Nernst and Thermal Hall Effects in Tilted Weyl Semimetals
• Theory of plasmonic effects in nonlinear optics: the case of graphene
• Negative longitudinal magnetoconductance at weak fields in Weyl semimetals
• Berry curvature induced thermopower in type-I and type-II Weyl Semimetals
• Optical properties and electromagnetic modes of Weyl semimetals
• Linear magnetochiral effect in Weyl semimetals
• Anomalous transport properties of Dirac and Weyl semimetals
• Hear the Sound of Weyl Fermions
• Quantum non-local theory of topological Fermi arc plasmons in Weyl semimetals
• Chiral magnetic plasmons in anomalous relativistic matter
• Second-order chiral kinetic theory: Chiral magnetic and pseudomagnetic waves
• Pseudomagnetic helicons
• Surface plasmon polaritons in thin-film Weyl semimetals
• Dynamical correlation functions and the related physical effects in three-dimensional Weyl/Dirac semimetals
• Magneto-polaritons in Weyl semimetals in a strong magnetic field
• Electronic optics in graphene in the semiclassical approximation
• Electrodynamics of tilted Dirac/Weyl materials: A unique platform for unusual surface plasmon polaritons
• Hydrodynamic modes in a magnetized chiral plasma with vorticity
• Collective excitations in Weyl semimetals in the hydrodynamic regime
• Hydrodynamics of Fermi arcs: Bulk flow and surface collective modes
• Dynamic chiral magnetic effect and anisotropic natural optical activity of tilted Weyl semimetals
• Electromagnetic fields induced by an electric charge near a Weyl semimetal
• Unconventional electromagnetic mode in neutral Weyl Semimetals
• Magneto-optical Kerr effect in Weyl semimetals with broken inversion and time-reversal symmetries
• Collective Excitations in Hot QCD Plasma
• Nonreciprocal electron hydrodynamics under magnetic fields: applications to nonreciprocal surface magnetoplasmons
• Plasmon Fizeau drag in 3D Dirac and Weyl semimetals
• Surface plasmonics of Weyl semimetals
• Plasmonic quantum nonlinear Hall effect in noncentrosymmetric 2D materials
• Tunable interface states between Floquet-Weyl semimetals
• Chiral filtration of light by Weyl-semimetal medium
• Quantum oscillations in Dirac magnetoplasmons
• Anomalous plasmon mode in strained Weyl semimetals
• Nonreciprocal Weyl semimetal waveguide
• Chiral second-sound collective mode at the edge of 2D systems with nontrivial Berry curvature
• Ground state and polarization of an hydrogen-like atom near a Weyl semimetal
• Localized surface plasmons in a Weyl semimetal nanosphere
• Axion electrodynamics of Weyl superconductors with broken time-reversal symmetry
• Collective excitations and universal broadening of cyclotron absorption in Dirac semimetals in a quantizing magnetic field
• Weyl excitations via helicon-phonon mixing in conducting materials