Parent Berry curvature and the ideal anomalous Hall crystal
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 …
sufficiently high parent Berry curvature, we show that strong repulsive interactions …
Extended quantum anomalous Hall states in graphene/hBN moiré superlattices
Electrons in topological flat bands can form new topological states driven by correlation
effects. The pentalayer rhombohedral graphene/hexagonal boron nitride (hBN) moiré …
effects. The pentalayer rhombohedral graphene/hexagonal boron nitride (hBN) moiré …
Anomalous Hall crystals in rhombohedral multilayer graphene. II. General mechanism and a minimal model
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 …
topological electronic state that spontaneously breaks both time-reversal symmetry and …
Stability of anomalous Hall crystals in multilayer rhombohedral graphene
Recent experiments showing an integer quantum anomalous Hall effect in pentalayer
rhombohedral graphene have been interpreted in terms of a valley-polarized interaction …
rhombohedral graphene have been interpreted in terms of a valley-polarized interaction …
Extended quantum anomalous Hall effect in moiré structures: Phase transitions and transport
Recent experiments on multilayer rhombohedral graphene have unearthed a number of
interesting phenomena in the regime where integer and fractional quantum anomalous Hall …
interesting phenomena in the regime where integer and fractional quantum anomalous Hall …
Efficient prediction of superlattice and anomalous miniband topology from quantum geometry
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 …
platforms to study topological and correlated quantum phases. In this article, we develop a …
Moir\'e Fractional Chern Insulators IV: Fluctuation-Driven Collapse of FCIs in Multi-Band Exact Diagonalization Calculations on Rhombohedral Graphene
The fractional Chern insulators (FCIs) observed in pentalayer rhombohedral
graphene/hexagonal boron nitride superlattices have a unique origin contrary to theoretical …
graphene/hexagonal boron nitride superlattices have a unique origin contrary to theoretical …
Interplay of electronic crystals with integer and fractional Chern insulators in moir\'e pentalayer graphene
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 …
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
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 …
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
Fractional Chern insulators (FCI) with fractionally quantized Hall conductance at fractional
fillings and an extended quantum anomalous Hall (EQAH) crystal with an integer quantized …
fillings and an extended quantum anomalous Hall (EQAH) crystal with an integer quantized …