Alkali metal-doped two-dimensional Janus Cr₂Br₃I₃ monolayers with the quantum anomalous Hall effect

The Li/Na/K-doped Cr2Br3I3 monolayer comprehensively provides an “example” of the study of QAHE, i.e., a structure in which the electronic structure shows whether QAHE can be realized in three examples: “Yes”, “Needs to be fine-tuned”, and “No”.