TY - JOUR
T1 - Spin anisotropy and quantum Hall effect in the kagomé lattice
T2 - Chiral spin state based on a ferromagnet
AU - Ohgushi, K.
AU - Murakami, S.
AU - Nagaosa, N.
PY - 2000/9/1
Y1 - 2000/9/1
N2 - 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).
AB - 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).
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U2 - 10.1103/PhysRevB.62.R6065
DO - 10.1103/PhysRevB.62.R6065
M3 - Article
AN - SCOPUS:0034261268
VL - 62
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 10
ER -