Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/19487
Tipo: Artigo
Título: Spin-current to charge-current conversion and magnetoresistance in a hybrid structure of graphene and yttrium iron garnet
Autor(es): Mendes, J. B. S.
Santos, O. Alves
Meireles, L. M.
Lacerda, R. G.
Vilela-Leão, L. H.
Machado, F. L. A.
Rodríguez-Suárez, R. L.
Azevedo, A.
Rezende, S. M.
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.
Palavras-chave: Spin-Current
Charge-current conversion
Magnetoresistance
Graphene
Yttrium iron garnet
Editor: Physical Review Letters
Tipo de Acesso: American Physical Society
URI: https://doi.org/10.1103/PhysRevLett.115.226601
http://www.locus.ufv.br/handle/123456789/19487
Data do documento: 25-Nov-2015
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