6 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…
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…
Intrinsic antiferromagnetic topological insulator and axion state in V2WS4
Yadong Jiang, Huan Wang, Kejie Bao +1
Intrinsic magnetic topological insulators offers an ideal platform to explore exotic topological phenomena, such as axion electrodynamics, quantum anomalous Hall (QAH) effect and M…