Effective model analysis of intrinsic spin Hall effect with magnetism in stacked-kagome Weyl semimetal Co3Sn2S2

Abstract

We theoretically study the spin Hall effect in a simple tight-binding model of stacked-kagome Weyl semimetal Co3Sn2S2 with ferromagnetic ordering. We focus on the two types of the spin Hall current: one flowing in the in-plane direction with respect to the kagome lattice (in-plane spin Hall current), and one flowing in the stacking direction (out-of-plane spin Hall current). We show the spin Hall conductivities for those spin currents drastically change depending on the direction of the magnetic moment. Especially, the out-of-plane spin Hall current may induce surface spin accumulation, which are useful for the perpendicular magnetization switching via spin-orbit torque.

arXiv comment8 pages, 5 figures

References in corpus (30)

• Quantum Spin Hall Effect in Graphene
• Anomalous Hall effect
• Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
• Spin torque switching with the giant spin Hall effect of tantalum
• Weyl Semimetal in a Topological Insulator Multilayer
• Magnetic switching by spin torque from the spin Hall effect
• Giant anomalous Hall effect in a ferromagnetic Kagome-lattice semimetal
• Magnetic Weyl Semimetal Phase in a Kagome Crystal
• Anomalous Hall effect arising from noncollinear antiferromagnetism
• Large intrinsic anomalous Hall effect in half-metallic ferromagnet Co3Sn2S2 with magnetic Weyl fermions
• Evidence for Magnetic Weyl Fermions in a Correlated Metal
• Giant anomalous Nernst effect and quantum-critical scaling in a ferromagnetic semimetal
• Evidence for reversible control of magnetization in a ferromagnetic material via spin-orbit magnetic field
• Topological insulator on the kagome lattice
• Intrinsic spin Hall effect in platinum metal
• Zero-field Nernst effect in a ferromagnetic kagome-lattice Weyl-semimetal Co3Sn2S2
• Topological surface Fermi arcs in the magnetic Weyl semimetal Co${}_3$Sn${}_2$S${}_2$
• Controlling spin current polarization through non-collinear antiferromagnetism
• Creating Weyl nodes and controlling their energy by magnetization rotation
• Signatures for half-metallicity and nontrivial surface states in a Kagome-lattice magnetic Weyl semimetal Co${}_3$Sn${}_2$S${}_2$
• Spin and spin current -- From fundamentals to recent progress
• Universal charge and current on magnetic domain walls in Weyl semimetals
• Unusual exchange couplings and intermediate temperature Weyl state in Co3Sn2S2
• Two-orbital effective model for magnetic Weyl semimetal in Kagome-lattice shandite
• First-principles investigation of magnetic and transport properties in hole-doped shandite compounds Co${}_3$In${}_x$Sn${}_{2-x}$S${}_2$
• Localized charge in various configurations of magnetic domain wall in Weyl semimetal
• Magnetic orderings from spin-orbit coupled electrons on kagome lattice
• Self-consistent Analysis of Doping Effect for Magnetic Ordering in Stacked-Kagome Weyl System
• Spin and anomalous Hall effects emerging from topological degeneracy in Dirac fermion system CuMnAs
• Enhancement of Spin-Charge Conversion Efficiency for Co${}_3$Sn${}_2$S${}_2$ across Transition from Paramagnetic to Ferromagnetic Phase

Cited by in corpus (5)

• Topological transitions by magnetization rotation in kagome monolayers of ferromagnetic Weyl semimetal Co-based shandite
• Light-induced anomalous Hall conductivity in massive 3D Dirac semimetal Co${}_3$Sn${}_2$S${}_2$
• Chiral gauge field in fully-spin polarized Weyl semimetal with magnetic domain walls
• Intrinsic spin Nernst effect in topological Dirac and magnetic Weyl semimetals
• Magnetization-Tunable Topological Phase Transitions in Ferromagnetic Kagome Monolayers of Co${}_3$X${}_3$Y${}_2$ ($X=\mathrm{Sn},\mathrm{Pb}$; $Y=\mathrm{S},\mathrm{Se}$)