7 papers
A -valley Moiré Platform for Tunable Square Lattice Hubbard Model
Rui Shi, Kejie Bao, Huan Wang +1
Moiré superlattices have emerged as a premier platform for simulating the Hubbard model, yet achieving high tunability in square-lattice systems remains a key challenge. We demons…
Moiré Ferroelectricity-Driven Band Engineering in Twisted Square Bilayers
Kejie Bao, Rui Shi, Huan Wang +2
We develop the moiré band theory for M-valley twisted square homobilayers with layer groups - and -, and propose candidate material realizations. We show that moir…
Flat Chern bands and correlated states in spiral magnet ReAgCl
Kejie Bao, Rui Shi, Huan Wang +2
We predict the van der Waals monolayer ReAgCl hosts isolated flat Chern bands at the Fermi level in its antiferromagnetic ground state. Their flatness and nontr…
FeTaX2: A ferrimagnetic quantum anomalous Hall insulator
Yadong Jiang, Huan Wang, Jing Wang
We propose that the van der Waals layered ternary transition metal chalcogenides FeTa ( S, Se, Te) as a new family of ferrimagnetic quantum anomalous Hall insulators with…
Anisotropic moiré band flattening in twisted bilayers of M-valley MXenes
Kejie Bao, Huan Wang, Zhaochen Liu +1
Experimental studies on moiré materials have predominantly focused on twisted hexagonal lattice with low-energy states near the - or K-points, where the electronic dispersion…
Isolated nearly flat higher Chern band in monolayer transition metal trihalides
Kejie Bao, Huan Wang, Jiaxuan Guo +3
The interplay between non-trivial topology and strong electron interaction can generate a variety of exotic quantum matter. Here we theoretically propose that monolayer transition…