Self-consistent Analysis of Doping Effect for Magnetic Ordering in Stacked-Kagome Weyl System

Abstract

We theoretically study the carrier doping effect for magnetism in a stacked-kagome system ${\mathrm{Co}}_3{\mathrm{Sn}}_2{\mathrm{S}}_2$ based on an effective model and the Hartree-Fock method. We show the electron filling and temperature dependences of the magnetic order parameter. The perpendicular ferromagnetic ordering is suppressed by hole doping, wheres undoped ${\mathrm{Co}}_3{\mathrm{Sn}}_2{\mathrm{S}}_2$ shows magnetic Weyl semimetal state. Additionally, in the electron-doped regime, we find a non-collinear antiferromagnetic ordering. Especially, in the non-collinear antiferromagnetic state, by considering a certain spin-orbit coupling, the finite orbital magnetization and the anomalous Hall conductivity are obtained.

arXiv comment7 pages, 4 figures

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Cited by in corpus (8)

• Large anomalous Hall effect in single crystals of the kagome Weyl ferromagnet Fe${}_3$Sn
• Magnetic orderings from spin-orbit coupled electrons on kagome lattice
• Light-induced anomalous Hall conductivity in massive 3D Dirac semimetal Co${}_3$Sn${}_2$S${}_2$
• 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
• Effective Tight-Binding Model of Compensated Ferrimagnetic Weyl Semimetal with Spontaneous Orbital Magnetization
• Collinear ferromagnetism with reduced moment length in kagome magnet Nd3Ru4Al12