Recently, the quantum anomalous Hall effect has been successfully achieved in the intrinsic magnetic topological insulator MnBi2Te4, but zero-field quantization has proved difficult to achieve due to poor sample quality. Here, the authors report zero-field quantization and chiral edge states in five-septuple-layer MnBi2Te4.
- Chusheng Zhang
- Xiufang Lu
- Weibo Gao
