Parent Berry curvature and the ideal anomalous Hall crystal

T Tan, T Devakul - Physical Review X, 2024 - APS
We study a model of electrons moving in a parent band of uniform Berry curvature. At
sufficiently high parent Berry curvature, we show that strong repulsive interactions …

Extended quantum anomalous Hall states in graphene/hBN moiré superlattices

Z Lu, T Han, Y Yao, Z Hadjri, J Yang, J Seo, L Shi, S Ye… - Nature, 2025 - nature.com
Electrons in topological flat bands can form new topological states driven by correlation
effects. The pentalayer rhombohedral graphene/hexagonal boron nitride (hBN) moiré …

Anomalous Hall crystals in rhombohedral multilayer graphene. II. General mechanism and a minimal model

T Soejima, J Dong, T Wang, T Wang, MP Zaletel… - Physical Review B, 2024 - APS
We propose a minimal “three-patch model” for the anomalous Hall crystal (AHC), a
topological electronic state that spontaneously breaks both time-reversal symmetry and …

Stability of anomalous Hall crystals in multilayer rhombohedral graphene

Z Dong, AS Patri, T Senthil - Physical Review B, 2024 - APS
Recent experiments showing an integer quantum anomalous Hall effect in pentalayer
rhombohedral graphene have been interpreted in terms of a valley-polarized interaction …

Extended quantum anomalous Hall effect in moiré structures: Phase transitions and transport

AS Patri, Z Dong, T Senthil - Physical Review B, 2024 - APS
Recent experiments on multilayer rhombohedral graphene have unearthed a number of
interesting phenomena in the regime where integer and fractional quantum anomalous Hall …

Efficient prediction of superlattice and anomalous miniband topology from quantum geometry

V Crépel, J Cano - Physical Review X, 2025 - APS
Two-dimensional materials subject to long-wavelength modulations have emerged as novel
platforms to study topological and correlated quantum phases. In this article, we develop a …

Interplay of electronic crystals with integer and fractional Chern insulators in moir\'e pentalayer graphene

D Waters, A Okounkova, R Su, B Zhou, J Yao… - arxiv preprint arxiv …, 2024 - arxiv.org
The rapid development of moir\'e quantum matter has recently led to the remarkable
discovery of the fractional quantum anomalous Hall effect, and sparked predictions of other …

Fractional quantum anomalous Hall effect in rhombohedral multilayer graphene with a strong displacement field

K Huang, S Das Sarma, X Li - Physical Review B, 2025 - APS
We investigate the fractional quantum anomalous Hall (FQAH) effect in rhombohedral
multilayer graphene (RnG) in the presence of a strong applied displacement field. We first …

Edge-driven transition between extended quantum anomalous Hall crystal and fractional Chern insulator in rhombohedral graphene multilayers

Z Wei, AK Wu, M Gonçalves, SZ Lin - Physical Review B, 2025 - APS
Fractional Chern insulators (FCI) with fractionally quantized Hall conductance at fractional
fillings and an extended quantum anomalous Hall (EQAH) crystal with an integer quantized …