Topology analysis for anomalous Hall effect in the noncollinear antiferromagnetic states of Mn3A N (A=Ni, Cu, Zn, Ga, Ge, Pd, In, Sn, Ir, Pt) TOPOLOGY ANALYSIS for ANOMALOUS HALL EFFECT ... HUYEN, SUZUKI, YAMAUCHI, and OGUCHI

Vu Thi Ngoc Huyen, Michi To Suzuki, Kunihiko Yamauchi, Tamio Oguchi

研究成果: Article査読

15 被引用数 (Scopus)

抄録

We investigate topological features of electronic structures which produce large anomalous Hall effect in the noncollinear antiferromagnetic metallic states of antiperovskite manganese nitrides by first-principles calculations. We first predict the stable magnetic structures of these compounds to be noncollinear antiferromagnetic structures characterized by either T1g or T2g irreducible representation by evaluating the total energy for all of the magnetic structures classified according to the symmetry and multipole moments. The topology analysis is next performed for the Wannier tight-binding models obtained from the first-principles band structures. Our results reveal the small Berry curvature induced through the coupling between occupied and unoccupied states with the spin-orbit coupling, which is widely spread around the Fermi surface in the Brillouin zone, dominantly contributes after the k-space integration to the anomalous Hall conductivity, while the local divergent Berry curvature around Weyl points has a rather small contribution to the anomalous Hall conductivity.

本文言語English
論文番号094426
ジャーナルPhysical Review B
100
9
DOI
出版ステータスPublished - 2019 9 16

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

フィンガープリント

「Topology analysis for anomalous Hall effect in the noncollinear antiferromagnetic states of Mn3A N (A=Ni, Cu, Zn, Ga, Ge, Pd, In, Sn, Ir, Pt) TOPOLOGY ANALYSIS for ANOMALOUS HALL EFFECT ... HUYEN, SUZUKI, YAMAUCHI, and OGUCHI」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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