Disorder-Induced Elevation of Intrinsic Anomalous Hall Conductance in an Electron-Doped Magnetic Weyl Semimetal

Abstract

Topological materials are expected to show distinct transport signatures due to their unique band-inversion character and band-crossing points. However, the intentional modulation of such topological responses by experimentally feasible means is less explored. Here, an unusual elevation of anomalous Hall effect (AHE) is obtained in electron(Ni)-doped magnetic Weyl semimetal Co3-xNixSn2S2, showing peak values of anomalous Hall-conductivity, Hall-angle and Hall-factor at a relatively low doping level of x = 0.11. The separation of intrinsic and extrinsic contributions to total AHE using TYJ scaling model indicates that such significant enhancement is dominated by the intrinsic mechanism of electronic Berry curvature. Theoretical calculations reveal that compared with the Fermi-level shifting from electron filling, a usually overlooked effect of doping, i.e., local disorder, imposes a striking effect on broadening the bands and narrowing the inverted gap, and thus results in an elevation of the integrated Berry curvature. Our results not only realize the enhancement of AHE in a magnetic Weyl semimetal, but also provide a practical design principle to modulate the bands and transport properties in topological materials, by exploiting the disorder effect of doping.

References in corpus (29)

• Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
• Advanced capabilities for materials modelling with Quantum ESPRESSO
• Berry Phase Effects on Electronic Properties
• Maximally-localized generalized Wannier functions for composite energy bands
• Anomalous Hall effect
• WannierTools: An open-source software package for novel topological materials
• Maximally-localized Wannier functions for entangled energy bands
• Giant anomalous Hall effect in a ferromagnetic Kagome-lattice semimetal
• Wave-packet dynamics in slowly perturbed crystals: Gradient corrections and Berry-phase effects
• Anomalous Hall Effect and Magnetic Monopoles in Momentum-Space
• Massive Dirac fermions in a ferromagnetic kagome metal
• The virtual crystal approximation revisited: Application to dielectric and piezoelectric properties of perovskites
• Magnetic Weyl Semimetal Phase in a Kagome Crystal
• Fermi-arc diversity on surface terminations of the magnetic Weyl semimetal Co3Sn2S2
• Large intrinsic anomalous Hall effect in half-metallic ferromagnet Co3Sn2S2 with magnetic Weyl fermions
• Giant anomalous Nernst effect and quantum-critical scaling in a ferromagnetic semimetal
• Proper Scaling of the Anomalous Hall Effect
• Discovery of topological Weyl fermion lines and drumhead surface states in a room temperature magnet
• Unfolding spinor wavefunctions and expectation values of general operators: Introducing the unfolding-density operator
• Zero-field Nernst effect in a ferromagnetic kagome-lattice Weyl-semimetal Co3Sn2S2
• Anomalous Hall effect of ferromagnetic Fe3Sn2 single crystal with geometrically frustrated kagome lattice
• A hidden constant in the anomalous Hall effect of a high-purity magnet MnSi
• Multivariable Scaling for the Anomalous Hall Effect
• Temperature Dependence of the Intrinsic Anomalous Hall Effect in Nickel
• The anomalous Hall Effect and magnetoresistance in the layered ferromagnet Fe_{1/4}TaS_2: the inelastic regime
• Chemical Composition Tuning of the Anomalous Hall Effect in Isoelectronic L10 FePd1-xPtx Alloy Films
• Electron doping of proposed quantum spin liquid kagomé Zn-Cu hydroxyl-halides produces localized states in the band gap
• How disorder affects the Berry-phase anomalous Hall conductivity: the view from k space
• Disorder-Induced Weyl Semimetal Phase and Sequential Band Inversions in PbSe-SnSe Alloys

Cited by in corpus (23)

• Localized spin-orbit polaron in magnetic Weyl semimetal Co${}_3$Sn${}_2$S${}_2$
• Semiclassical equations of motion for disordered conductors: extrinsic interband velocity, corrected collision integral and spin-orbit torques
• Atomic disorder and Berry phase driven anomalous Hall effect in Co2FeAl Heusler compound
• Anti-site disorder and Berry curvature driven anomalous Hall effect in spin gapless semiconducting Mn2CoAl Heusler compound
• Magnetic-field modulation of topological electronic states and emergent magneto-transport in a magnetic Weyl semimetal
• Maximizing intrinsic anomalous Hall effect by controlling the Fermi level in simple Weyl semimetal films
• Phonon-limited Transport and Fermi Arc Lifetime in Weyl Semimetals
• Chemical-substitution-driven giant anomalous Hall and Nernst effects in magnetic cubic Heusler compounds
• Koopmans' theorem as the mechanism of nearly gapless surface states in self-doped magnetic topological insulators
• Group Theory on Quasisymmetry and Protected Near Degeneracy
• Electronic structure evolution of the magnetic Weyl semimetal Co${}_3$Sn${}_2$S${}_2$ with hole and electron doping
• Co-existence of Topological Non-trivial and Spin Gapless Semiconducting Behavior in MnPO${}_4$: A Composite Quantum Compound
• Tuning the anomalous Nernst and Hall effects with shifting the chemical potential in Fe-doped and Ni-doped Co${}_3$Sn${}_2$S${}_2$
• Nodal vacancy bound states and resonances in three-dimensional Weyl semimetals
• Extrinsic to intrinsic mechanism crossover of anomalous Hall effect in the Ir-doped MnPtSn Heusler system
• On the Onsager-Casimir reciprocal relations in a tilted Weyl semimetal
• Ferromagnetic-electrodes-induced Hall effect in topological Dirac semimetals
• Hydrostatic and chemical pressure driven crossover from commensurate to the incommensurate state of the Weyl semimetal Mn${}_{3+x}$Sn${}_{1-x}$
• Electron-doped magnetic Weyl semimetal LixCo3Sn2S2 by bulk-gating
• Emergent Weyl Fermions in an Orbital Multipolar Ordering Phase
• Investigating the intrinsic anomalous Hall effect in MnPt3 topological semimetal
• Giant-exchange-driven Vectorial Control of a Minimal Topological Magnet in Eu3In2As4
• Multi-state electromagnetic phase modulations in NiCo2O4 through cation disorder and hydrogenation