Moire excitons are emergent optical excitations in two-dimensional semiconductors with moire superlattice potentials. Although these excitations have been observed on several platforms, a system with dynamically tunable moire potential to tailor their properties is yet to be realized. Here we present a ...
We develop a systematic theory for excitons subject to Fermi-Hubbard physics in moire twisted transition metal dichalcogenides (TMDs). Specifically, we consider excitons from two moire bands with a Mott-insulating valence band sustaining 120 degrees spin order. These "Mott-moire excitons," which are...
In two-dimensional van der Waals heterostructures, a tunable moiré lattice potential for electronic excitations may form 4 , enabling the generation of correlated electron gases in the lattice potentials 5–9 . Excitons conf i ned in moiré lattices have also been reported 10,11 , but no ...
with disordered potentials are known to have both localized and delocalized eigenstates 14 , separated by an energy known as the mobility edge 16 . Coexistence o localized and delocalized eigenstates has been predicted also in regular quasiperiodic one-dimensional systems, irst in the discrete...
Moire patterns are common in van der Waals heterostructures and can be used to apply periodic potentials to elementary excitations. We show that the optical absorption spectrum of transition metal dichalcogenide bilayers is profoundly altered by long period moire patterns that introduce twist-angle ...