Chiral light amplifier with pumped Weyl semimetals
arXiv:2212.13025 · doi:10.1103/PhysRevLett.130.096903
Abstract
Parallel electric and magnetic fields applied to Weyl semimetals pump axial charge via the axial anomaly until balanced by intervalley relaxation. The resulting nonequilibrium steady state exhibits the chiral magnetic effect as well as the anomalous Hall effect, which coupled with Maxwell's equations leads to unstable electromagnetic waves at low frequency and long wavelength. Here, we show that such chiral magnetic instability manifests itself as anomalous reflectance of the surface of pumped Weyl semimetal. Depending on electric, chiral magnetic, and anomalous Hall conductivities, the reflectance is found to exceed unity in a finite range of frequency for a circularly polarized light incident along the direction of Weyl node separation.
arXiv comment5 pages, 3 figures; published version
References in corpus (29)
- Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
- Weyl and Dirac Semimetals in Three Dimensional Solids
- Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
- Weyl Semimetal in a Topological Insulator Multilayer
- The Chiral Magnetic Effect
- The effects of topological charge change in heavy ion collisions: "Event by event P and CP violation"
- Chiral Anomaly and Classical Negative Magnetoresistance of Weyl Metals
- Phase transition between the quantum spin Hall and insulator phases in 3D: emergence of a topological gapless phase
- Quantum Hall effects in a Weyl Semi-Metal: possible application in pyrochlore Iridates
- Signatures of the Adler-Bell-Jackiw chiral anomaly in a Weyl Fermion semimetal
- Electromagnetic Response of Weyl Semimetals
- Primordial Magnetic Fields, Right Electrons, and the Abelian Anomaly
- Primordial Hypermagnetic Fields and Triangle Anomaly
- Chiral Anomaly and Diffusive Magnetotransport in Weyl Metals
- Notes on Anomaly Induced Transport
- Self-consistent evolution of magnetic fields and chiral asymmetry in the early Universe
- Chiral Plasma Instabilities
- Triangle anomaly in Weyl semi-metals
- Strain induced Chiral Magnetic Effect in Weyl semimetals
- Chiral Effects and Cosmic Magnetic Fields
- Self-similar inverse cascade of magnetic helicity driven by the chiral anomaly
- Electromagnetic field and the chiral magnetic effect in the quark-gluon plasma
- Dynamical evolution of the chiral magnetic effect: Applications to the quark-gluon plasma
- Consistent Chiral Kinetic Theory in Weyl Materials: Chiral Magnetic Plasmons
- Chiral Langevin theory for non-Abelian plasmas
- Anomaly-driven inverse cascade and inhomogeneities in a magnetized chiral plasma in the early Universe
- Chiral magnetic effect of hot electrons
- Dynamical chiral magnetic current and instability in Weyl semimetals
- Anomalous plasma: chiral magnetic effect and all that
Cited by in corpus (5)
- Observation of a dynamic magneto-chiral instability in photoexcited tellurium
- Optical reflection signature of an axion dielectric with magnetic current
- Nanoscale Casimir Force Softening Originated from Quantum Surface Responses
- Double rotatory power reversal, continuous Kerr angle, and enhanced reflectance in bi-isotropic media with anomalous Hall current
- Effect of trivial bands on chiral anomaly-induced longitudinal magnetoconductivity in Weyl semimetals