Emerging exciton physics in transition metal dichalcogenide heterobilayers
Atomically thin transition metal dichalcogenides (TMDs) are 2D semiconductors with tightly
bound excitons and correspondingly strong light–matter interactions. Owing to the weak van …
bound excitons and correspondingly strong light–matter interactions. Owing to the weak van …
Excitons and emergent quantum phenomena in stacked 2D semiconductors
The design and control of material interfaces is a foundational approach to realize
technologically useful effects and engineer material properties. This is especially true for two …
technologically useful effects and engineer material properties. This is especially true for two …
Anomalous Hall crystals in rhombohedral multilayer graphene. I. Interaction-driven Chern bands and fractional quantum Hall states at zero magnetic field
Recent experiments on rhombohedral pentalayer graphene with a substrate-induced moiré
potential have identified both Chern insulators and fractional quantum Hall states at zero …
potential have identified both Chern insulators and fractional quantum Hall states at zero …
Tunable correlated Chern insulator and ferromagnetism in a moiré superlattice
Studies of two-dimensional electron systems in a strong magnetic field revealed the
quantum Hall effect, a topological state of matter featuring a finite Chern number C and …
quantum Hall effect, a topological state of matter featuring a finite Chern number C and …
Electronic-structure methods for twisted moiré layers
When single layers of 2D materials are stacked on top of one another with a small twist in
orientation, the resulting structure often involves incommensurate moiré patterns. In these …
orientation, the resulting structure often involves incommensurate moiré patterns. In these …
Pressure-controlled interlayer magnetism in atomically thin CrI3
Stacking order can influence the physical properties of two-dimensional van der Waals
materials,. Here we applied hydrostatic pressure up to 2 GPa to modify the stacking order in …
materials,. Here we applied hydrostatic pressure up to 2 GPa to modify the stacking order in …
Stacking-Dependent Magnetism in Bilayer CrI3
We report the connection between the stacking order and magnetic properties of bilayer CrI3
using first-principles calculations. We show that the stacking order defines the magnetic …
using first-principles calculations. We show that the stacking order defines the magnetic …
Topological insulators in twisted transition metal dichalcogenide homobilayers
We show that moiré bands of twisted homobilayers can be topologically nontrivial, and
illustrate the tendency by studying valence band states in±K valleys of twisted bilayer …
illustrate the tendency by studying valence band states in±K valleys of twisted bilayer …
Hubbard model physics in transition metal dichalcogenide moiré bands
Flexible long period moiré superlattices form in two-dimensional van der Waals crystals
containing layers that differ slightly in lattice constant or orientation. In this Letter we show …
containing layers that differ slightly in lattice constant or orientation. In this Letter we show …
Evidence of a gate-tunable Mott insulator in a trilayer graphene moiré superlattice
The Mott insulator is a central concept in strongly correlated physics and manifests when the
repulsive Coulomb interaction between electrons dominates over their kinetic energy …
repulsive Coulomb interaction between electrons dominates over their kinetic energy …