572 citations · 4.1k across the 73 of their papers we have counts for
8 papers · 1 filter
Magnetic Hofstadter cascade in a twisted semiconductor homobilayer
Benjamin A. Foutty, Aidan P. Reddy, Carlos R. Kometter +4
Transition metal dichalcogenide moiré homobilayers have emerged as a platform in which magnetism, strong correlations, and topology are intertwined. In a large magnetic field, the…
Fractional Chern mosaic in supermoiré graphene
Yves H. Kwan, Tixuan Tan, Trithep Devakul
We propose the realization of a fractional Chern mosaic: a state characterized by a spatially varying topological order. This state is enabled by a separation of length scales that…
Imaging supermoiré relaxation in helical trilayer graphene
Jesse C. Hoke, Yifan Li, Yuwen Hu +5
In twisted van der Waals materials, local atomic relaxation can alter the underlying electronic structure. Characterizing lattice reconstruction and its susceptibility to strain is…
Wavefunction approach to the fractional anomalous Hall crystal
Tixuan Tan, Julian May-Mann, Trithep Devakul
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 of m…
Theory of Half-Integer Fractional Quantum Spin Hall Insulator Edges
Julian May-Mann, Ady Stern, Trithep Devakul
We study the edges of fractional quantum spin Hall insulators (FQSH) with half-integer spin Hall conductance. These states can be viewed as symmetric combinations of a spin-up and…
Parent Berry curvature and the ideal anomalous Hall crystal
Tixuan Tan, Trithep Devakul
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 genericall…
Stability of quasiperiodic superconductors
Nicole Sabina Ticea, Julian May-Mann, Jiewen Xiao +2
We study the effects of quasiperiodicity on the stability of conventional and unconventional superconductors. Quasiperiodicity is modelled using the three-dimensional Aubry-Andre m…
Designing topology and fractionalization in narrow gap semiconductor films via electrostatic engineering
Tixuan Tan, Aidan P. Reddy, Liang Fu +1
We show that topological flat minibands can be engineered in a class of narrow gap semiconductor films using only an external electrostatic superlattice potential. We demonstrate t…