title: Spin-Current to Charge-Current Conversion and Magnetoresistance in a Hybrid Structure of Graphene and Yttrium Iron Garnet.
abstract: The use of graphene in spintronic devices depends, among other things, on its ability to convert a spin excitation into an electric charge signal, a phenomenon that requires a spin-orbit coupling (SOC). Here we report the observation of two effects that show the existence of SOC in large-area CVD grown single-layer graphene deposited on a single crystal film of the ferrimagnetic insulator yttrium iron garnet (YIG). The first is a magnetoresistance of graphene induced by the magnetic proximity effect with YIG. The second is the detection of a dc voltage along the graphene layer resulting from the conversion of the spin current generated by spin pumping from microwave driven ferromagnetic resonance into a charge current, which is attributed to the inverse Rashba-Edelstein effect.
authors.affiliation: Departamento de Física, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brasil.
authors.forename: J B S
authors.initials: JB
authors.lastname: Mendes
authors.affiliation: Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brasil.
authors.forename: O
authors.initials: O
authors.lastname: Alves Santos
authors.affiliation: Departamento de Física, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brasil.
authors.forename: L M
authors.initials: LM
authors.lastname: Meireles
authors.affiliation: Departamento de Física, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brasil.
authors.forename: R G
authors.initials: RG
authors.lastname: Lacerda
authors.affiliation: Núcleo Interdisciplinar de Ciências Exatas e Inovação Tecnológica, Universidade Federal de Pernambuco, 55002-970 Caruaru, Pernambuco, Brasil.
authors.forename: L H
authors.initials: LH
authors.lastname: Vilela-Leão
authors.affiliation: Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brasil.
authors.forename: F L A
authors.initials: FL
authors.lastname: Machado
authors.affiliation: Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brasil.|Facultad de Física, Pontificia Universidad Católica de Chile, Casilla 306, Santiago, Chile.
authors.forename: R L
authors.initials: RL
authors.lastname: Rodríguez-Suárez
authors.affiliation: Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brasil.
authors.forename: A
authors.initials: A
authors.lastname: Azevedo
authors.affiliation: Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brasil.
authors.forename: S M
authors.initials: SM
authors.lastname: Rezende