Competing correlated states and abundant orbital magnetism in twisted monolayer-bilayer graphene

oleh: Minhao He, Ya-Hui Zhang, Yuhao Li, Zaiyao Fei, Kenji Watanabe, Takashi Taniguchi, Xiaodong Xu, Matthew Yankowitz

Format: Article
Diterbitkan: Nature Portfolio 2021-08-01

Deskripsi

Twisted monolayer-bilayer graphene is an attractive platform to study the interplay between topology, magnetism and correlations in the flat bands. Here, using electrical transport measurements, the authors uncover a rich correlated phase diagram and identify a new insulating state that can be explained by intervalley coherence with broken time reversal symmetry.