Self-consistent analysis of doping effect for magnetic ordering in stacked-kagome Weyl system

Akihiro Ozawa, Kentaro Nomura

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Article number024202
JournalPhysical Review Materials
Volume6
Issue number2
DOIs
Publication statusPublished - Feb 2022
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

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