Distinguishing features of longitudinal magnetoconductivity for a Rarita-Schwinger-Weyl node
arXiv:2506.12380 · doi:10.1007/s10909-026-03452-1
Abstract
The band-degeneracy points in the Brillouin zones of chiral crystals exist in multiple avatars, with the high-symmetry points being able to host multifold nodes of distinct characters. A class of such crystals, assisted by the spin-orbit coupling, harbours fourfold degeneracy in the form of Rarita-Schwinger-Weyl node (RSWN) at the -point. Our aim is to explore the nature of longitudinal magnetoconductivity, arising from applying collinear electric and magnetic fields, for such systems. Adjusting the chemical potential to lie near the intrinsic energy-location of the RSWN, the multifold nature of the RSWN is revealed by an interplay of intraband and interband scatterings, which would not arise in twofold degeneracies like the conventional Weyl nodes. The current study fills up the much-needed gap in obtaining the linear response from an exact computation, rather than the insufficient relaxation-time approximation employed earlier.
arXiv commentjournal version; we have reviewed the Boltzmann formalism for the ease of readability, although the framework is the same as used in arXiv:2505.19636 and arXiv:2506.07913
References in corpus (48)
- Berry Phase Effects on Electronic Properties
- Weyl and Dirac Semimetals in Three Dimensional Solids
- Weyl Semimetal in a Topological Insulator Multilayer
- Valley contrasting physics in graphene: magnetic moment and topological transport
- Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals
- Wave-packet dynamics in slowly perturbed crystals: Gradient corrections and Berry-phase effects
- Multiple types of topological fermions in transition metal silicides
- Anomalous Hall Effect in Weyl Metals
- Axionic field theory of (3+1)-dimensional Weyl semi-metals
- Chiral anomaly as origin of planar Hall effect in Weyl semimetals
- Topological Semimetals with Triply Degenerate Nodal Points in θ-phase Tantalum Nitride
- Topological Phases for Fermionic Cold Atoms on the Lieb Lattice
- Tight-binding modeling and low-energy behavior of the semi-Dirac point
- Massless Dirac-Weyl Fermions in a T_3 Optical Lattice
- Chiral Optical Response of Multifold Fermions
- Co-existence of Weyl Fermion and Massless Triply Degenerate Nodal Points
- Barrier transmission of Dirac-like pseudospin-one particles
- Onsager Relations in Coupled Electric, Thermoelectric and Spin Transport: The Ten-Fold Way
- Klein tunneling and supercollimation of pseudospin-1 electromagnetic waves
- Interactions remove the quantization of the chiral photocurrent at Weyl points
- Thermoelectric transport in double-Weyl semimetals
- Berry phase theory of planar Hall effect in Topological Insulators
- Magnetic textures and dynamics in magnetic Weyl semimetals
- Berry Curvature and Quantum Metric in -band systems -- an Eigenprojector Approach
- Magnus Hall Effect
- Rarita-Schwinger-Weyl semimetal in Jeff=3/2 electron systems
- Triple point fermions in a minimal symmorphic model
- Semimetal with both Rarita-Schwinger-Weyl and Weyl excitations
- Negative longitudinal magnetoconductance at weak fields in Weyl semimetals
- Thermopower in an anisotropic two-dimensional Weyl semimetal
- Magnus Nernst and thermal Hall effect
- Interplay of topology and electron-electron interactions in Rarita-Schwinger-Weyl semimetals
- Circular dichroism as a probe for topology in three-dimensional semimetals
- Tunneling of multi-Weyl semimetals through a potential barrier under the influence of magnetic fields
- New quantum critical points of Dirac electrons in antiperovskite topological crystalline insulators
- Intrinsic negative magnetoresistance from the chiral anomaly of multifold fermions
- Magneto-optical conductivity in the type-I and type-II phases of Weyl/multi-Weyl semimetals
- Magnus Hall effect in three-dimensional topological semimetals
- Generalized Triple-Component Fermions: Lattice Model, Fermi arcs, and Anomalous Transport
- Thermoelectric response in nodal-point semimetals
- Electric and thermoelectric response for Weyl and multi-Weyl semimetals in planar Hall configurations including the effects of strain
- Longitudinal magnetoconductance and the planar Hall conductance in inhomogeneous Weyl semimetals
- Revisiting magnetotransport in Weyl semimetals
- Linear response in planar Hall and thermal Hall setups for Rarita-Schwinger-Weyl semimetals
- Signatures of topology in generic transport measurements for Rarita-Schwinger-Weyl semimetals
- Transport across junctions of pseudospin-one fermions
- Chiral topological metals with multiple types of quasiparticle fermions and large spin Hall effect in the SrGePt family materials
- Reflections of topological properties in the planar-Hall response for semimetals carrying pseudospin-1 quantum numbers