Fengcheng Wu

TL;DR: In this paper, multiple interlayer exciton resonances with either positive or negative circularly polarized emission were observed in a molybdenum diselenide/tungsten diselinide (MoSe2/WSe2) heterobilayer with a small twist angle.

TL;DR: The observation of multiple interlayer exciton resonances with either positive or negative circularly polarized emission in a molybdenum diselenide/tungsten diselsenide (MoSe2/WSe2) heterobilayer with a small twist angle suggests the feasibility of engineering artificial excitonic crystals using van der Waals heterostructures for nanophotonics and quantum information applications.

TL;DR: It is theoretically shown that isolated flat moiré bands described by generalized triangular lattice Hubbard models are present in twisted transition metal dichalcogenide heterobilayers.

TL;DR: Using a microscopic model for phonon coupling to moiré band electrons, it is found that phonons generate attractive interactions in both s- and d-wave pairing channels and that the attraction is strong enough to explain the experimental superconducting transition temperatures.

TL;DR: In this article, it was shown that the topmost moir\'e valence bands of twisted homobilayers can be topologically nontrivial, and illustrate the tendency by studying valence band states in the $+K$ ($\ensuremath{-}K$) valleys of twisted bilayer transition metal dichalcogenides, in particular bilayer ${\mathrm{MoTe}}_{2}$.