TY - JOUR
T1 - Two-orbital effective model for magnetic Weyl semimetal in kagome-lattice shandite
AU - Ozawa, Akihiro
AU - Nomura, Kentaro
N1 - Funding Information:
We would like to thank Y. Araki, J. Checkelsky, K. Kobayashi, T. Koretsune, D. Kurebayashi, Y. Motome, Y. Nakamura, M.-T. Suzuki, A. Tsukazaki, A. Yamakage, and Y. Yanagi for helpful discussions. This work was supported by JSPS KAKENHI Grants Nos. JP15H05854 and JP17K05485, JST CREST Grant No. JPMJCR18T2, and GP-Spin at Tohoku University.
Funding Information:
Acknowledgement We would like to thank Y. Araki, J. Checkelsky, K. Kobayashi, T. Koretsune, D. Kurebayashi, Y. Motome, Y. Nakamura, M.-T. Suzuki, A. Tsukazaki, A. Yamakage, and Y. Yanagi for helpful discussions. This work was supported by JSPS KAKENHI Grants Nos. JP15H05854 and JP17K05485, JST CREST Grant No. JPMJCR18T2, and GP-Spin at Tohoku University.
Publisher Copyright:
©2019 The Physical Society of Japan
PY - 2019
Y1 - 2019
N2 - We construct a two-orbital effective model for a ferromagnetic Kagome-lattice shandite, Co3Sn2S2, 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-principles calculations. We show also that nodal rings appear even with spin–orbit coupling when the magnetization points in-plane direction. Additionally, magnetic properties of Co3Sn2S2 and other shandite materials are discussed.
AB - We construct a two-orbital effective model for a ferromagnetic Kagome-lattice shandite, Co3Sn2S2, 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-principles calculations. We show also that nodal rings appear even with spin–orbit coupling when the magnetization points in-plane direction. Additionally, magnetic properties of Co3Sn2S2 and other shandite materials are discussed.
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U2 - 10.7566/JPSJ.88.123703
DO - 10.7566/JPSJ.88.123703
M3 - Article
AN - SCOPUS:85075561261
VL - 88
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 12
M1 - 123703
ER -