Ideal Chern bands with strong short-range repulsion: Applications to correlated metals, superconductivity, and topological order

PH Wilhelm, AM Läuchli, MS Scheurer - Physical Review Research, 2024 - APS
Motivated by recent experiments on correlated van der Waals materials, including twisted
and rhombohedral graphene and twisted WSe 2, we perform an analytical and numerical …

Fractional Chern insulator candidate on a twisted bilayer checkerboard lattice

JZ Ma, RZ Huang, GY Zhu, JY Chen, DX Yao - Physical Review B, 2024 - APS
We investigate a fractional Chern insulator (FCI) candidate arising from moiré bands with
higher Chern number C= 2 on a magic-angle twisted bilayer checkerboard lattice …

Interplay between topology and correlations in the second moir\'e band of twisted bilayer MoTe2

F Xu, X Chang, J Xiao, Y Zhang, F Liu, Z Sun… - arXiv preprint arXiv …, 2024 - arxiv.org
Topological flat bands formed in two-dimensional lattice systems offer unique opportunity to
study the fractional phases of matter in the absence of an external magnetic field …

Is the low-energy optical absorption in correlated insulators controlled by quantum geometry?

D Mao, JF Mendez-Valderrama… - arXiv preprint arXiv …, 2024 - arxiv.org
Inspired by the discovery of a variety of correlated insulators in the moir\'e universe,
controlled by interactions projected to a set of isolated bands with a narrow bandwidth, we …

Structure factor and topological bound of twisted bilayer semiconductors at fractional fillings

T Zaklama, D Luo, L Fu - arXiv preprint arXiv:2411.03496, 2024 - arxiv.org
The structure factor is a useful observable for probing charge density correlations in real
materials, and its long-wavelength behavior encapsulated by``quantum weight''has recently …