Large anomalous Hall effect observed in the cubic-lattice antiferromagnet Mn3Sb with kagome lattice

The anomalous Hall effect, typically observed in ferromagnetic metals, can also manifest in certain non -collinear antiferromagnetic materials. However, studying the cubic kagome antiferromagnet Mn3X (X = Ir, Pt, Rh), which was theoretically predicted to exhibit the anomalous Hall effect, has proven challenging due to the extremely small measured values. In this study, we validate these theoretical predictions by successfully measuring a remarkable anomalous Hall conductivity in the cubic kagome antiferromagnet Mn3Sb, reaching up to 308 O-1 cm-1. Combining these results with those obtained from the hexagonal kagome antiferromagnet Mn3Z (Z = Sn, Ge), our findings contribute to a comprehensive understanding of the anomalous Hall effect in noncollinear antiferromagnetic materials, leading to further advancements in the research on the functions and control of cluster multipoles.

Automated summary

In this study, the anomalous Hall effect in the cubic kagome antiferromagnet Mn3Sb is successfully measured, validating its theoretical predictions. These findings contribute to a comprehensive understanding of the anomalous Hall effect in noncollinear antiferromagnetic materials.