Two-orbital effective model for magnetic Weyl semimetal in Kagome-lattice shandite

Abstract

We construct a two-orbital effective model for a ferromagnetic Kagome-lattice shandite, ${\mathrm{Co}}_3{\mathrm{Sn}}_2{\mathrm{S}}_2$, a candidate material of magnetic Weyl semimetals, by considering one $d$ orbital from Co, and one $p$ orbital from interlayer Sn. The energy spectrum near the Fermi level, and the configurations of the Weyl points, computed by using our model, are similar to those obtained by first principle calculations. We show also that nodal rings appear even with spin-orbit coupling when the magnetization points in-plane direction. Additionally, magnetic properties of ${\mathrm{Co}}_3{\mathrm{Sn}}_2{\mathrm{S}}_2$ and other shandite materials are discussed.

arXiv comment5 pages, 6 figures

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Cited by in corpus (24)

• First-principles investigation of magnetic and transport properties in hole-doped shandite compounds Co${}_3$In${}_x$Sn${}_{2-x}$S${}_2$
• Ferromagnetic helical nodal line and Kane-Mele spin-orbit coupling in kagome metal Fe3Sn2
• Electronic structure and topology across $T_c$ in magnetic Weyl semimetal Co${}_3$Sn${}_2$S${}_2$
• Magnetic Topological Kagome Systems
• Nonadiabatic Nonlinear Optics and Quantum Geometry -- Application to the Twisted Schwinger Effect
• The magnetic structure of the topological semimetal Co${}_3$Sn${}_2$S${}_2$
• Two-dimensionality of metallic surface conduction in Co3Sn2S2 thin films
• Magnetic orderings from spin-orbit coupled electrons on kagome lattice
• Electronic structure evolution of the magnetic Weyl semimetal Co${}_3$Sn${}_2$S${}_2$ with hole and electron doping
• Microscopic origins and stability of the ferromagnetism in Co${}_3$Sn${}_2$S${}_2$
• Chemical Rules for Stacked Kagome and Honeycomb Topological Semimetals
• Linear response theories for interatomic exchange interactions
• Self-consistent Analysis of Doping Effect for Magnetic Ordering in Stacked-Kagome Weyl System
• Light-induced anomalous Hall conductivity in massive 3D Dirac semimetal Co${}_3$Sn${}_2$S${}_2$
• Topological transitions by magnetization rotation in kagome monolayers of ferromagnetic Weyl semimetal Co-based shandite
• Enhancement of Spin-Charge Conversion Efficiency for Co${}_3$Sn${}_2$S${}_2$ across Transition from Paramagnetic to Ferromagnetic Phase
• Effective model analysis of intrinsic spin Hall effect with magnetism in stacked-kagome Weyl semimetal Co3Sn2S2
• Chiral gauge field in fully-spin polarized Weyl semimetal with magnetic domain walls
• Spectrum collapse of disordered Dirac Landau levels as topological non-Hermitian physics
• Ferromagnetic-electrodes-induced Hall effect in topological Dirac semimetals
• Effective Tight-Binding Model of Compensated Ferrimagnetic Weyl Semimetal with Spontaneous Orbital Magnetization
• Nonreciprocal ballistic transport in multi-layer Weyl semimetal films with surface engineering
• Intrinsic spin Nernst effect in topological Dirac and magnetic Weyl semimetals
• Microscopic theory of electrically induced spin torques in magnetic Weyl semimetals