Intrinsic magnetic topological insulator phases in the Sb doped MnBiTe bulks and thin flakes.

Magnetic topological insulators (MTIs) offer a combination of topologically nontrivial characteristics and magnetic order and show promise in terms of potentially interesting physical phenomena such as the quantum anomalous Hall (QAH) effect and topological axion insulating states. However, the understanding of their properties and potential applications have been limited due to a lack of suitable candidates for MTIs. Here, we grow two-dimensional single crystals of Mn(SbBi)Te bulk and exfoliate them into thin flakes in order to search for intrinsic MTIs.