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 …
Quantum Geometry in Quantum Materials
Quantum geometry, characterized by the quantum geometric tensor, is pivotal in diverse
physical phenomena in quantum materials. In condensed matter systems, quantum …
physical phenomena in quantum materials. In condensed matter systems, quantum …
Entropy-enhanced fractional quantum anomalous Hall effect
G Shavit - Physical Review B, 2024 - APS
Strongly interacting electrons in a topologically nontrivial band may form exotic phases of
matter. An especially intriguing example of which is the fractional quantum anomalous Hall …
matter. An especially intriguing example of which is the fractional quantum anomalous Hall …
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 …
New classes of quantum anomalous Hall crystals in multilayer graphene
The recent experimental observation of quantum anomalous Hall (QAH) effects in the
rhombohedrally stacked pentalayer graphene has motivated theoretical discussions on the …
rhombohedrally stacked pentalayer graphene has motivated theoretical discussions on the …
Wavefunction approach to the fractional anomalous Hall crystal
We propose fractional anomalous Hall crystals (FAHCs) as possible ground states of
strongly interacting electrons in parent bands with Berry curvature. FAHCs are exotic states …
strongly interacting electrons in parent bands with Berry curvature. FAHCs are exotic states …
Impurity-induced thermal crossover in fractional Chern insulators
The recent experimental observation of fractional quantum anomalous Hall (FQAH) states in
rhombohedral multilayer graphene has attracted significant attention. One of the most …
rhombohedral multilayer graphene has attracted significant attention. One of the most …
Chiral superconductivity from parent Chern band and its non-Abelian generalization
YQ Wang, ZQ Gao, H Yang - arxiv preprint arxiv:2410.05384, 2024 - arxiv.org
We propose a minimal model starting from a parent Chern band with quartic dispersion that
can describe the spin-valley polarized electrons in rhombohedral tetra-layer graphene. The …
can describe the spin-valley polarized electrons in rhombohedral tetra-layer graphene. The …