Interplay of Energy and Charge Transfer in WSe₂/CrSBr Heterostructures.

ABSTRACT: van der Waals heterostructures (vdWHs) composed of transition-metal dichalcogenides (TMDs) and layered magnetic semiconductors offer great opportunities to manipulate the exciton and valley properties of TMDs. Here, we present magneto-photoluminescence (PL) studies in a WSe₂ monolayer (ML) on a CrSBr crystal, an anisotropic layered antiferromagnetic semiconductor. Our results reveal the unique behavior of each of the ML-WSe₂ PL peaks under a magnetic field that is distinct from the pristine case. An intriguing feature is the clear enhancement of the PL intensity that we observe each time the external magnetic field tunes the energy of an exciton in CrSBr into resonance with one of the optical states of WSe₂. This result suggests a magnetic field-controlled

SUBMITTER: Roberto de Toledo J 

PROVIDER: S-EPMC12412143 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature