Interaction and temperature effects on the magneto-optical conductivity of Weyl liquids
arXiv:2003.14246 · doi:10.1103/PhysRevB.102.045148
Abstract
Negative magnetoresistance is one of the manifestations of the chiral anomaly in Weyl semimetals. The magneto-optical conductivity also shows transitions between Landau levels that are not spaced as in an ordinary electron gas. How are such topological properties modified by interactions and temperature? We answer this question by studying a lattice model of Weyl semimetals with an on-site Hubbard interaction. Such an interacting Weyl semimetal, dubbed as Weyl liquid, may be realized in MnSn. We solve that model with single-site dynamical mean-field theory. We find that in a Weyl liquid, quasiparticles can be characterized by a quasiparticle spectral weight , although their lifetime increases much more rapidly as frequency approaches zero than in an ordinary Fermi liquid. The negative magnetoresistance still exists, even though the slope of the linear dependence of the DC conductivity with respect to the magnetic filed is decreased by the interaction. At elevated temperatures, a Weyl liquid crossesover to bad metallic behavior where the Drude peak becomes flat and featureless.
arXiv comment12 pages, 12 figures, LaTeX. Same as published version
References in corpus (30)
- Theoretical Discovery/Prediction: Weyl Semimetal states in the TaAs material (TaAs, NbAs, NbP, TaP) class
- Weyl semimetal phase in non-centrosymmetric transition metal monophosphides
- Chiral Anomaly and Classical Negative Magnetoresistance of Weyl Metals
- Negative magnetoresistance without well-defined chirality in the Weyl semimetal TaP
- Signatures of the Adler-Bell-Jackiw chiral anomaly in a Weyl Fermion semimetal
- Evidence for Magnetic Weyl Fermions in a Correlated Metal
- Universality of the Mott-Ioffe-Regel limit in metals
- Bad metallic transport in a cold atom Fermi-Hubbard system
- How bad metals turn good: spectroscopic signatures of resilient quasiparticles
- A New Iterative Perturbation Scheme for Lattice Models with Arbitrary Filling
- Axial anomaly and longitudinal magnetoresistance of a generic three dimensional metal
- Optical Signatures of Weyl Points in TaAs
- Fermi arc topology and interconnectivity in Weyl fermion semimetals TaAs, TaP, NbAs, and NbP
- Magneto-optical conductivity of Weyl semimetals
- Optical conductivity of multi-Weyl semimetals
- Hidden Fermi Liquid, Scattering Rate Saturation and Nernst Effect: a DMFT Perspective
- Global Phase Diagram of a Dirty Weyl Liquid and Emergent Superuniversality
- Chiral Landau levels in Weyl semimetal NbAs with multiple topological carriers
- Weyl Mott Insulator
- On the separability of dynamical and non-local correlations in three dimensions
- Landau quantization in coupled Weyl points: a case study of semimetal NbP
- Model of the electron-phonon interaction and optical conductivity of BaKBiO superconductors
- Orbital effect and weak localization physics in the longitudinal magnetoresistance of the Weyl semimetals NbP, NbAs, TaP and TaAs
- Orbital magnetization of correlated electrons with arbitrary band topology
- Chern numbers and chiral anomalies in Weyl butterflies
- Hall and Faraday effects in interacting multi-band systems with arbitrary band topology and spin-orbit coupling
- Complete optical valley polarization in Weyl semimetals in strong magnetic fields
- Orbital magnetization and anomalous Hall effect in interacting Weyl semimetals
- Orbital Effect of the Magnetic Field in Dynamical Mean-Field Theory
- Surface effects in doping a Mott insulator