4 papers
General Many-Body Perturbation Framework for Moiré Systems
Xin Lu, Yuanfan Yang, Zhongqing Guo +1
Moiré superlattices host a rich variety of correlated topological states, including interaction-driven integer and fractional Chern insulators. A common approach to study interact…
Fractional topological states in rhombohedral multilayer graphene modulated by kagome superlattice
Yanran Shi, Bo Xie, Fengfan Ren +7
Fractional quantum anomalous Hall effects realized in twisted bilayer MoTe and multilayer-graphene-based moiré heterostructures have captured a tremendous growth of interest.…
Orbital magnetoelectric coupling of three dimensional Chern insulators
Xin Lu, Renwen Jiang, Zhongqing Guo +1
Orbital magnetoelectric effect is closely related to the band topology of bulk crystalline insulators. Typical examples include the half quantized Chern-Simons orbital magnetoelect…
Correlation stabilized anomalous Hall crystal in bilayer graphene
Zhongqing Guo, Jianpeng Liu
When the charge density is sufficiently low, interacting two-dimensional electron gas (2DEG) would undergo a phase transition from homogeneous Fermi liquid to an electronic crystal…