12 papers
Switching Chern number by sliding and gating in alternately twisted tetralayer MoTe2
Xiao-Wei Zhang, Kaijie Yang, Xiaodong Xu +2
Switching the bulk Chern number in topological materials is of central importance for the design of topological electronic devices. Motivated by recent observations of integer and…
Orbital Magnetization of Correlated States in Twisted Bilayer Transition Metal Dichalcogenides
Xiaoyu Liu, Chong Wang, Haoran Chen +3
Recent observations of quantum anomalous Hall effects in moiré systems have revealed the emergence of interaction-driven ferromagnetism with significant orbital contributions. To…
Van Hove Singularity-Driven Topological Magnetism in Twisted MoTe2
Heonjoon Park, Julian Stewart, Xiao-Wei Zhang +15
Van Hove singularities (vHSs) strongly amplify electron interactions and can stabilize correlated phases in topological bands. Here we report signatures of topological magnetism in…
Robust valley-polarized excitonic Mott states and doublons enabled by stacking-controlled moiré geometry
Hao-Tien Chu, Shou-Chien Chiu, Meng-Che Yeh +12
Atomically-thin moiré superlattices offer an optically accessible platform for interacting bosons, where strong onsite repulsion suppresses double occupancy and supports…
Atomically Resolved Acoustic Dynamics Coupled with Magnetic Order in a van der Waals Antiferromagnet
Faran Zhou, Kyle Hwangbo, Sung Soo Ha +22
Magnetoelastic coupling in van der Waals (vdW) magnetic materials enables a unique interplay between the spin and lattice degrees of freedom. Characterizing the elastic responses w…
Layerwise Stratification and Band Reordering in Twisted Multilayer MoTe
Yueyao Fan, Xiao-Wei Zhang, Yusen Ye +5
We introduce a generalizable, physics informed strategy for generating training data that enables a machine learning force field accurate over a broad range of twist angles and sta…