Orbital ferromagnetism and anomalous Hall effect in antiferromagnets on distorted fcc lattice
Abstract
The Berry phase due to the spin wavefunction gives rise to the orbital ferromagnetism and anomalous Hall effect in the non-coplanar antiferromagnetic ordered state on face centered cubic (fcc) lattice once the crystal is distorted perpendicular to (1,1,1) or (1,1,0)- plane. The relevance to the real systems γ-FeMn and NiS2 is also discussed.
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