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Modulation of pure spin currents with a ferromagnetic insulator

AuthorsVillamor, Estitxu; Isasa, Miren; Vélez, Saül; Bedoya-Pinto, Amilcar; Vavassori, Paolo; Hueso, Luis E.; Bergeret, F. S. ; Casanova, Félix
Issue Date2015
PublisherAmerican Physical Society
CitationPhysical Review B 91(2): 020403(R) (2015)
AbstractWe propose and demonstrate spin manipulation by magnetically controlled modulation of pure spin currents in cobalt/copper lateral spin valves, fabricated on top of the magnetic insulator Y3Fe5O12 (YIG). The direction of the YIG magnetization can be controlled by a small magnetic field. We observe a clear modulation of the nonlocal resistance as a function of the orientation of the YIG magnetization with respect to the polarization of the spin current. Such a modulation can only be explained by assuming a finite spin-mixing conductance at the Cu/YIG interface, as it follows from the solution of the spin-diffusion equation. These results open a path towards the development of spin logics.
DescriptionUnder the terms of the Creative Commons Attribution License 3.0 (CC-BY).
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.91.020403
Identifiersdoi: 10.1103/PhysRevB.91.020403
issn: 2469-9950
e-issn: 2469-9969
Appears in Collections:(CFM) Artículos
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