TY - JOUR
T1 - Self-consistent analysis of doping effect for magnetic ordering in stacked-kagome Weyl system
AU - Ozawa, Akihiro
AU - Nomura, Kentaro
N1 - Funding Information:
We thank Y. Araki, K. Kobayashi, Y. Motome, A. Tsukazaki, and J. Watanabe for valuable discussions. This work was supported by the Japan Society for the Promotion of Science KAKENHI (Grant No. JP20H01830) and by CREST, Japan Science and Technology Agency (Grant No. JPMJCR18T2). A.O. was supported by GP-Spin at Tohoku University and by JST SPRING (Grant No. JPMJSP2114).
Publisher Copyright:
© 2022 American Physical Society.
PY - 2022/2
Y1 - 2022/2
N2 - We theoretically study the carrier doping effect for magnetism in the stacked-kagome system Co3Sn2S2 based on an effective model and the Hartree-Fock method. We show the electron filling and temperature dependencies of the magnetic order parameter. The perpendicular ferromagnetic ordering is suppressed by hole doping, whereas undoped Co3Sn2S2 shows a magnetic Weyl semimetal state. Additionally, in the electron-doped regime, we find a noncollinear antiferromagnetic ordering. Especially, in the noncollinear antiferromagnetic state, by considering a certain spin-orbit coupling, the finite orbital magnetization and the anomalous Hall conductivity are obtained.
AB - We theoretically study the carrier doping effect for magnetism in the stacked-kagome system Co3Sn2S2 based on an effective model and the Hartree-Fock method. We show the electron filling and temperature dependencies of the magnetic order parameter. The perpendicular ferromagnetic ordering is suppressed by hole doping, whereas undoped Co3Sn2S2 shows a magnetic Weyl semimetal state. Additionally, in the electron-doped regime, we find a noncollinear antiferromagnetic ordering. Especially, in the noncollinear antiferromagnetic state, by considering a certain spin-orbit coupling, the finite orbital magnetization and the anomalous Hall conductivity are obtained.
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U2 - 10.1103/PhysRevMaterials.6.024202
DO - 10.1103/PhysRevMaterials.6.024202
M3 - Article
AN - SCOPUS:85126072137
SN - 2475-9953
VL - 6
JO - Physical Review Materials
JF - Physical Review Materials
IS - 2
M1 - 024202
ER -