Work

High Chern number quantum anomalous Hall states in Haldane-graphene multilayers

Year: 2025

Type: article

Abstract: We consider a rhombohedral-stacked $N$-layer graphene coupled to a monolayer of Haldane model. We show that high order Dirac points in multilayer graphene can be gapped out by topological proximity effect of the Haldane model layer, leading to total Chern number $|C|=N+1$ quantum anomalous Hall states. This provides a new way to construct high Chern number quantum anomalous Hall states in realistic crystalline graphene systems.

Source: Physical review. B./Physical review. B

DOI: 10.1103/vyf8-9cw9

Authors: Yuejiu Zhao, Long Zhang, Fu-Chun Zhang

Institutions: Kavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences

Language: English

Topic: Topological Materials and Phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Natural Science Foundation of China, Chinese Academy of Sciences, Ministry of Science and Technology of the People's Republic of China

Awards: G1206173709, G3292017577, G6480333418, G7489226687