%0 Journal Article
%T Modulation of pure spin currents with a ferromagnetic insulator
%A Estitxu Villamor
%A Miren Isasa
%A Saščl VšŠlez
%A Amilcar Bedoya-Pinto
%A Paolo Vavassori
%A Luis E. Hueso
%A F. Sebastian Bergeret
%A Fššlix Casanova
%J Physics
%D 2014
%I arXiv
%R 10.1103/PhysRevB.91.020403
%X We 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 Y$_3$Fe$_5$O$_{12}$ (YIG). The direction of the YIG magnetization can be controlled by a small magnetic field. We observe a clear modulation of the non-local 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 new path towards the development of spin logics.
%U http://arxiv.org/abs/1404.2311v2