Thermoelectric transport in double-Weyl semimetals

Abstract

We study the thermoelectric properties of a double-Weyl fermion system, possibly realized in $\mathrm{HgC}{\mathrm{r}}_2\mathrm{S}{\mathrm{e}}_4$ and $\mathrm{SrS}{\mathrm{i}}_2$, by a semi-classical Boltzmann transport theory. We investigate different relaxation processes including short-range disorder and electron-electron interaction on the thermoelectric transport coefficients. It is found that the anisotropy of the band dispersion for in-plane and out-of-plane momentum directions affects the relaxation time for transport in different directions. The transport also exhibits an interesting directional dependence on the chemical potential and model parameters, differing from a simple isotropic quadratic or linearly dispersing electron gas. By applying a static magnetic field along the linearly dispersing direction, the longitudinal and transverse electrical and thermal magnetoconductivity show a similar dependence on the in-plane cyclotron frequency to the linear dispersing Weyl nodes. By including internode scattering, we find that the chiral anomaly contribution to the thermoelectric coefficients doubles that of a linearly dispersing Weyl node in both the semi-classical and quantum regimes. A magnetic field applied along the quadratically dispersing direction will split the double Weyl point into two single Weyl points with the same chirality.

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Cited by in corpus (55)

• Topological Semimetals
• Linear magneto-chiral transport in tilted type-I and type-II Weyl Semimetals
• Anomalous Nernst and Thermal Hall Effects in Tilted Weyl Semimetals
• Topological responses from chiral anomaly in multi-Weyl semimetals
• Correlation Length, Universality Classes, and Scaling Laws Associated with Topological Phase Transitions
• Emergent Electromagnetic Induction and Adiabatic Charge Pumping in Weyl Semimetals
• Weyl fermions with arbitrary monopole in magnetic fields: Landau levels, longitudinal magnetotransport, and density-wave ordering
• Floquet multi-Weyl points in crossing-nodal-line semimetals
• Universality classes of topological phase transitions with higher-order band crossing
• Semiclassical Boltzmann transport theory for multi-Weyl semimetals
• Thermopower in an anisotropic two-dimensional Weyl semimetal
• Anomalous transport properties of Dirac and Weyl semimetals
• Double Weyl points and Fermi arcs of topological semimetals in non-Abelian gauge potentials
• Anomalous thermoelectric phenomena in lattice models of multi-Weyl semimetals
• Magneto-transport phenomena of type-I multi-Weyl semimetals in co-planar setups
• Hourglass Charge-Three Weyl Phonons
• The semiclassical theory of anomalous transport in type-II topological Weyl semimetals
• Thermo-electric transport properties of Floquet multi-Weyl Semimetals
• Collective modes in multi-Weyl semimetals
• Magneto-optical conductivity of double Weyl semimetals
• Electronic structure and unconventional non-linear response in double Weyl semimetal SrSi${}_2$
• Role of topological charges in the nonlinear-optical response from Weyl semimetals
• Generalized Triple-Component Fermions: Lattice Model, Fermi arcs, and Anomalous Transport
• Fully spin-polarized double-Weyl fermions with type-III dispersion in quasi-one dimensional materials X2RhF6 (X=K, Rb, Cs)
• Understanding the three-dimensional quantum Hall effect in generic multi-Weyl semimetals
• Thermoelectric response in nodal-point semimetals
• Axial anomaly in multi-Weyl and triple-point semimetals
• Exploring topological double-Weyl semimetals with cold atoms in optical lattices
• Electric and thermoelectric response for Weyl and multi-Weyl semimetals in planar Hall configurations including the effects of strain
• Fermi arc mediated entropy transport in topological semimetals
• Breakdown of Fermi liquid theory in topological multi-Weyl semimetals
• Topological Properties of the Chiral Magnetic Effect in Multi-Weyl Semimetals
• Anomalous Hall transport in tilted multi-Weyl semimetals
• Wigner function and kinetic phenomena for chiral plasma in a strong magnetic field
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• Distinct signatures of particle-hole symmetry breaking in transport coefficients for generic multi-Weyl semimetals
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• Thermoelectric properties of inversion symmetry broken Weyl semimetal-Weyl superconductor hybrid junctions
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• Tunneling in an anisotropic cubic Dirac semi-metal
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• Topological charge Fano effect in multi-Weyl semimetals
• Tunneling phase diagrams in anisotropic Multi-Weyl semimetals
• Nernst Thermopower of Time-Reversal Breaking Type-II Weyl Semimetals
• Magneto-thermoelectricty of anisotropic two-dimensional materials
• Distinguishing features of longitudinal magnetoconductivity for a Rarita-Schwinger-Weyl node
• Impact of Broken Inversion Symmetry on Molecular States in multi-Weyl fermions