Unraveling the Spin-to-Charge Current Conversion Mechanism and Charge Transfer Dynamics at the Interface of Graphene/WS₂ Heterostructures at Room Temperature.

ABSTRACT: We report experimental investigations of spin-to-charge current conversion and charge transfer (CT) dynamics at the interface of the graphene/WS₂ van der Waals heterostructure. Pure spin current was produced by the spin precession in the microwave-driven ferromagnetic resonance of a permalloy film (Py=Ni₈₁Fe₁₉) and injected into the graphene/WS₂ heterostructure through a spin pumping process. The observed spin-to-charge current conversion in the heterostructure is attributed to the inverse Rashba-Edelstein effect (IREE) at the graphene/WS₂ interface. Interfacial CT dynamics in this heterostructure was investigated based on the framework of the core-hole clock (CHC) approach. The results obtained from spin pumping and CHC studies show t

SUBMITTER: Cunha RO 

PROVIDER: S-EPMC11492317 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature