Large room temperature spin-to-charge conversion signals in a few-layer graphene/Pt lateral heterostructure.

ABSTRACT: Electrical generation and detection of pure spin currents without the need of magnetic materials are key elements for the realization of full electrically controlled spintronic devices. In this framework, achieving a large spin-to-charge conversion signal is crucial, as considerable outputs are needed for plausible applications. Unfortunately, the values obtained so far have been rather low. Here we exploit the spin Hall effect by using Pt, a non-magnetic metal with strong spin-orbit coupling, to generate and detect pure spin currents in a few-layer graphene channel. Furthermore, the outstanding properties of graphene, with long-distance spin transport and higher electrical resistivity than metals, allow us to achieve in our graphene/Pt lateral heterostructures the largest spin-to-charge o

SUBMITTER: Yan W 

PROVIDER: S-EPMC5610249 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature