Twisted monolayer-bilayer graphene has attracted intense interest due to its rich symmetry-broken states which can be tuned by an external electric field. Here, the authors determine the ground states at half-filling of the conduction band under opposite electric field and report on a symmetry-broken Chern insulator state with its Chern number closely related to the half-filling ground states.
- Huimin Peng
- Jinrui Zhong
- Yugui Yao
