Distinct signatures of particle-hole symmetry breaking in transport coefficients for generic multi-Weyl semimetals
arXiv:2201.11417 · doi:10.1103/PhysRevB.105.214307
Abstract
We propose and study generic multi-Weyl semimetal (mWSM) lattice Hamiltonians that break particle-hole symmetry. These models fall into two categories: model I (model II) where the gap and tilt terms are coupled (decoupled) can host type-I and type-II Weyl nodes simultaneously (separately) in a hybrid phase (type-I and type-II phases, respectively). We concentrate on the question of how anisotropy and non-linearity in the dispersions, gaps and tilt terms influence diffusive second order transport quantities namely, the circular photogalvanic effect (CPGE) and the Berry curvature dipole (BCD) as well as first order Magnus Hall effect (MHE) in the ballistic limit. The signatures of topological charges are clearly imprinted in the quantized CPGE response for the hybrid mWSM phase in model I. Such a quantization is also found in the type-I WSM phase for model II, however, the frequency profiles of the CPGE in these two cases is distinctively different owing to their different band dispersion irrespective of the identical topological properties. The contributions from the vicinity of Weyl nodes and away from the WNs are clearly manifested in the BCD response, respectively, for model I model II. The Fermi surface properties for the activated momentum lead to a few hallmark features on the MHE for both the models. Furthermore, we identify distinguishing signatures of the above responses for type-I, type-II and hybrid phases to provide an experimentally viable probe to differentiate these WSMs phases.
18 pages and 9 figures
References in corpus (28)
- Topological response in Weyl semimetals and the chiral anomaly
- Classification of stable three-dimensional Dirac semimetals with nontrivial topology
- Large Fermi Arcs in Unconventional Weyl Semimetal RhSi
- Chiral anomaly and transport in Weyl metals
- Gate-Tunable Negative Longitudinal Magnetoresistance in the Predicted Type-II Weyl Semimetal WTe2
- Chiral Decomposition in the Electronic Structure of Graphene Multilayers
- Room temperature nonlinear Hall effect and wireless RF rectification in Weyl semimetal TaIrTe4
- The Berry curvature dipole in Weyl semimetal materials: an ab initio study
- Thermoelectric properties of Weyl and Dirac semimetals
- Quantum Hall effect in a bulk antiferromagnet EuMnBi with magnetically confined two-dimensional Dirac fermions
- Quantum Hall states observed in thin films of Dirac semimetal Cd3As2
- Giant topological longitudinal circular photo-galvanic effect in the chiral multifold semimetal CoSi
- Photogalvanic effect in Weyl semimetals
- Berry connection polarizability tensor and third-order Hall effect
- Linear and nonlinear optical responses in the chiral multifold semimetal RhSi
- Emergent Weyl spinors in multi-fermion systems
- Nonlinear transport in Weyl semimetals induced by Berry curvature dipole
- Topological Nonlinear Anomalous Nersnt Effect in Strained Transition Metal Dichalcogenides
- Weyl fermions with arbitrary monopole in magnetic fields: Landau levels, longitudinal magnetotransport, and density-wave ordering
- Hybrid Weyl Semimetal
- Magnus Nernst and thermal Hall effect
- Anomalous thermoelectric phenomena in lattice models of multi-Weyl semimetals
- Role of time reversal symmetry and tilting in circular photogalvanic responses
- Rabi Regime of Current Rectification in Solids
- Electronic structure and unconventional non-linear response in double Weyl semimetal SrSi
- Topology and symmetry of circular photogalvanic effect in the chiral multifold semimetals: a review
- Topological Magnus responses in two and three dimensional systems
- Topologically Protected Wormholes in Type-III Weyl Semimetal CoInX (X = S, Se)