Coexistence of chiral DW and QAHE can be achieved in QAH insulators with sizable Dzyaloshinskii–Moriya interactions. Domain walls act as natural boundaries separating edge states with opposite ...

When an electric current passes through some materials, it generates a voltage perpendicular to the direction in which the ...

The phenomenon was coined the "fractional quantum anomalous Hall effect," and theorists have been keen to find an explanation for how fractional charge can emerge from pentalayer graphene.