Transport and magnetotransport in 3D Weyl Semimetals

Abstract

We theoretically investigate the transport and magnetotransport properties of three-dimensional Weyl semimetals. Using the RPA-Boltzmann transport scattering theory for electrons scattering off randomly distributed charged impurities, together with an effective medium theory to average over the resulting spatially inhomogeneous carrier density, we smoothly connect our results for the minimum conductivity near the Weyl point with known results for the conductivity at high carrier density. In the presence of a non-quantizing magnetic field, we predict that for both high and low carrier densities, Weyl semimetals show a transition from quadratic magnetoresistance (MR) at low magnetic fields to linear MR at high magnetic fields, and that the magnitude of the MR > 10 for realistic parameters. Our results are in quantitative agreement with recent unexpected experimental observations on the mixed-chalcogenide compound TlBiSSe.

5 pages, 5 figures

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• Quantum Transport in Topological Semimetals under Magnetic Fields
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• Magnetotransport in a model of a disordered strange metal
• Semiclassical Boltzmann transport theory for multi-Weyl semimetals
• Klein tunneling in Weyl semimetals under the influence of magnetic field
• Intrinsic Magnetoconductivity of Non-magnetic Metals
• Equivalence of Effective Medium and Random Resistor Network models for disorder-induced unsaturating linear magnetoresistance
• Enhanced higher harmonic generation from nodal topology
• Spatial Charge Inhomogeneity and Defect States in Topological Dirac Semimetal Thin Films
• Electronic properties of disordered Weyl semimetals at charge neutrality
• Phonon-limited Transport and Fermi Arc Lifetime in Weyl Semimetals
• Exploring self-consistency of the equations of axion electrodynamics in Weyl semimetals
• Unusual magnetoresistance oscillations in preferentially oriented p-type polycrystalline ZrTe5
• Electrostatic Modulation of the Electronic Properties of Dirac Semimetal Na3Bi
• Semiclassical Boltzmann transport theory of few-layer black phosphorus in various phases
• Temperature Dependent n-p Transition of 3 Dimensional Dirac Semimetal Na${}_3$Bi Thin Film
• Anomalous spin Nernst effect in Weyl semimetals
• Quantum magnetoresistance of Weyl semimetals with strong Coulomb disorder