Orbital magnetization and its effect in antiferromagnets on the distorted fcc lattice

Abstract

We study the intrinsic orbital magnetization (OM) in antiferromagnets on the distorted face-centered-cubic lattice. The combined lattice distortion and spin frustration induce nontrivial $k$-space Chern invariant, which turns to result in profound effects on the OM properties. We derive a specific relation between the OM and the Hall conductivity, according to which it is found that the intrinsic OM vanishes when the electron chemical potential lies in the Mott gap. The distinct behavior of the intrinsic OM in the metallic and insulating regions is shown. The Berry phase effects on the thermoelectric transport is also discussed.

18 pages, 6 figures

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Cited by in corpus (6)

• Theory of Orbital Magnetization in Solids
• Theory of orbital magnetization in disordered systems
• Quantum spin Hall effect and spin-charge separation in a kagome lattice
• Anomalous Hall conductivity and quantum friction
• Orbital magnetization senses the topological phase transition in a spin-orbit coupled $\alpha$-$T_3$ system
• Topological Aspects of Antiferromagnets