Room temperature polariton spin switches based on Van der Waals superlattices.

ABSTRACT: Transition-metal dichalcogenide monolayers possess large exciton binding energy and a robust valley degree of freedom, making them a viable platform for the development of spintronic devices capable of operating at room temperature. The development of such monolayer TMD-based spintronic devices requires strong spin-dependent interactions and effective spin transport. This can be achieved by employing exciton-polaritons. These hybrid light-matter states arising from the strong coupling of excitons and photons allow high-speed in-plane propagation and strong nonlinear interactions. Here, we demonstrate the operation of all-optical polariton spin switches by incorporating a WS₂ superlattice into a planar microcavity. We demonstrate spin-anisotropic polariton nonlinear interactions

SUBMITTER: Zhao J 

PROVIDER: S-EPMC11366025 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature