Moiré superlattices, the artificial quantum materials, have provided a wide range of
possibilities for the exploration of completely new physics and device architectures. In this …

The photoexcitation life cycle from incident photon (and creation of photoexcited electron–
hole pair) to ultimate extraction of electrical current is a complex multiphysics process …

Ferroic orders describe spontaneous polarization of spin, charge and lattice degrees of
freedom in materials. Materials exhibiting multiple ferroic orders, known as multiferroics …

A panoply of unconventional electronic states has been observed in moiré superlattices.
Engineering similar bosonic phases remains, however, largely unexplored. We report the …

The quantum anomalous Hall effect (QAHE) is a robust topological phenomenon that
features quantized Hall resistance at zero magnetic field. We report the QAHE in a …

Van der Waals materials with long-range magnetic order show a range of correlated
phenomena that could be of use in the development of optoelectronic and spintronic …

Emergent phenomena in exfoliated layered transition metal compounds have attracted
much attention in the past several years. Especially, pursuing a ferromagnetic insulator is …

We show that rhombohedral four-layer graphene (4LG) nearly aligned with a hexagonal
boron nitride (hBN) substrate often develops nearly flat isolated low-energy bands with …

In the presence of strong electronic interactions, a partially filled Chern band may stabilize a
fractional Chern insulator (FCI) state, the zero-field analog of the fractional quantum Hall …

Summary Two-dimensional (2D) heterostructures constructed of van der Waals-stacked 2D
inorganic materials have emerged as a new class of material with emergent properties that …