Microscopic origin of the anomalous Hall effect in noncollinear kagome magnets

Abstract

The authors establish a microscopic understanding of the anomalous Hall effect of electrons in several Kagome magnets. The spin-orbit coupling together with the inversion-symmetry breaking in these materials can effectively be described by a virtual texture that is canted out of the Kagome plane, even though the actual magnetic texture is coplanar. The uncompensated virtual texture has a finite scalar spin chirality effectively giving rise to a topologically induced Hall effect.