Magnetic Photocurrents in Multifold Weyl Fermions
arXiv:2107.05106 · doi:10.1103/PhysRevB.104.155149
Abstract
We examine the magneto-optical response of chiral multifold fermions. Specifically, we show that they are ideal candidates for observing the Helical Magnetic Effect (HME) previously predicted for simple Weyl fermions. Unlike Weyl fermions, the HME is present in multifold fermions even in the simplest case where the low-energy dispersion is linear and spherically symmetric. In this ideal case, we derive an analytical expression for the HME and find it is proportional to the circular photogalvanic effect; for realistic parameters and accounting for the geometry of the setup, the HME photocurrent could be roughly the same order of magnitude as the circular photogalvanic effect observed in multifold fermions. Additional non-linear and symmetry-breaking terms will ruin the quantization but not hurt the observation of the HME.
arXiv comment9 pages; 5 figures. Accepted Version
References in corpus (43)
- Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
- Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
- The Chiral Magnetic Effect
- 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
- Ultrahigh mobility and giant magnetoresistance in the Dirac semimetal CdAs
- 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
- Observation of Weyl nodes in TaAs
- Observation of the chiral magnetic effect in ZrTe5
- Discovery of a Weyl Fermion semimetal state in NbAs
- Signatures of the Adler-Bell-Jackiw chiral anomaly in a Weyl Fermion semimetal
- Quantized circular photogalvanic effect in Weyl semimetals
- Multi-Weyl Topological Semimetals Stabilized by Point Group Symmetry
- Berry phase correction to electron density of states in solids
- Berry Curvature, Triangle Anomalies, and the Chiral Magnetic Effect in Fermi Liquids
- Chiral Kinetic Theory
- Multiple types of topological fermions in transition metal silicides
- Direct optical detection of Weyl fermion chirality in a topological semimetal
- Dirac vs. Weyl in topological insulators: Adler-Bell-Jackiw anomaly in transport phenomena
- Large Fermi Arcs in Unconventional Weyl Semimetal RhSi
- A new type of Weyl semimetal with quadratic double Weyl fermions in SrSi2
- Discovery of topological chiral crystals with helicoid arc states
- Photocurrents in Weyl semimetals
- Chiral Topological Semimetal with Multifold Band Crossings and Long Fermi arcs
- Chiral Anomaly and Diffusive Magnetotransport in Weyl Metals
- Observation of Topological Photocurrents in the Chiral Weyl Semimetal RhSi
- Chiral Optical Response of Multifold Fermions
- Helicity protected ultrahigh mobility Weyl fermions in NbP
- Chiral terahertz wave emission from the Weyl semimetal TaAs
- Room-temperature chiral charge pumping in Dirac semimetals
- Tracking ultrafast photocurrents in the Weyl semimetal TaAs using THz emission spectroscopy
- Twofold quadruple Weyl nodes in chiral cubic crystals
- Linear and nonlinear optical responses in the chiral multifold semimetal RhSi
- Multifold nodal points in magnetic materials
- Optical signatures of multifold fermions in the chiral topological semimetal CoSi
- Circular and magnetoinduced photocurrents in Weyl semimetals
- Giant photocurrent in asymmetric Weyl semimetals from the helical magnetic effect
- Magnetotransport in Dirac metals: chiral magnetic effect and quantum oscillations
- Transverse Chiral Magnetic Photocurrent Induced by Linearly Polarized Light in Mirror-Symmetric Weyl Semimetals
- Tunable chiral symmetry breaking in symmetric Weyl materials
Cited by in corpus (6)
- Magnus Hall effect in three-dimensional topological semimetals
- Bulk-Fermi-Arc Transition Induced Large Photogalvanic Effect in Weyl Semimetals
- Multiplicative topological semimetals
- Quantum transport of a spin-1 chiral fermion
- Low-Frequency Divergence of Circular Photomagnetic Effect in Topological Semimetals
- Quantum Transport in Spin-1 Chiral Fermion: Self-Consistent Born Approximation