Spin anisotropy and quantum Hall effect in the kagomé lattice: Chiral spin state based on a ferromagnet

K. Ohgushi, S. Murakami, N. Nagaosa

研究成果: Article

318 引用 (Scopus)

抜粋

A ferromagnet with spin anisotropies on the two-dimensional (2D) kagomé, lattice is theoretically studied. This is a typical example of the flat-band ferromagnet. The Berry phase induced by the tilting of the spins opens the band gap and quantized Hall conductance σxy= ± e2/h is realized. This is the most realistic chiral spin state based on the ferromagnetism. We also discuss the implication of our results to the anomalous Hall effect observed in the metallic pyrochlore ferromagnets R2Mo2O7 (R=Nd, Sm, Gd).

元の言語English
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
62
発行部数10
DOI
出版物ステータスPublished - 2000 9 1
外部発表Yes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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