Ontology highlight
ABSTRACT:
SUBMITTER: Bi Z
PROVIDER: S-EPMC7843647 | biostudies-literature | 2021 Jan
REPOSITORIES: biostudies-literature
Nature communications 20210128 1
Artificial moiré superlattices in 2d van der Waals heterostructures are a new venue for realizing and controlling correlated electronic phenomena. Recently, twisted bilayer WSe<sub>2</sub> emerged as a new robust moiré system hosting a correlated insulator at moiré half-filling over a range of twist angle. In this work, we present a theory of this insulating state as an excitonic density wave due to intervalley electron-hole pairing. We show that exciton condensation is strongly enhanced by a va ...[more]