Spin scattering and noncollinear spin structure-induced intrinsic anomalous Hall effect in antiferromagnetic topological insulator MnBi2Te4

This paper shows a spin fluctuation-driven spin scattering and a metastable canted antiferromagnetic phase in MnBi${}_{2}$Te${}_{4}$. These are signatures of an intrinsic anomalous Quantum Hall effect and open up new avenues to realize a quantum anomalous Hall insulator at high temperatures