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et al. ; We explore the influence of the phase of localized plasmon resonances on the magneto-optical activity of nanoferromagnets. We demonstrate that these systems can be described as two orthogonal damped oscillators coupled by the spin-orbit interaction. We prove that only the spin-orbit induced transverse plasmon plays an active role on the magneto-optical properties by controlling the relative amplitude and phase lag between the two oscillators. Our theoretical predictions are fully confirmed by magneto-optical Kerr effect and optical extinction measurements in nanostructures of different size and shape. © 2013 American Physical Society. ; We thank for financial support the Basque Government (Program No. PI2012-47), the Catalan Government (Project No. 2009-SGR-1292), and the Spanish Ministry of Economy and Competitiveness (Projects No. MAT2012-36844 and No. MAT2010-20616-C02). S. B. and J.Å. acknowledge financial support from the Knut and Alice Wallenberg Foundation. Z. P., A. D., and J.Å. acknowledge the Swedish Research Council (VR) and the Swedish Foundation for Strategic Research, SSF (Z. P. and A. D.: Framework program Functional Electromagnetic Metamaterials, Project No. RMA08; J.Å.: Successful Research Leader Program). M. K., Q. H. Q, and S. v. D. acknowledge support from the National Doctoral Programme in Nanoscience and the Academy of Finland (Grant No. 263510). ; Peer Reviewed

Under the terms of the Creative Commons Attribution License 3.0 (CC-BY). ; 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 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. ; This work was supported by the European Commission under the Marie Curie Actions (256470-ITAMOSCINOM), NMP Project (263104-HINTS) and the European Research Council (257654-SPINTROS), by the Spanish MINECO under Projects No. MAT2012-37638, No. MAT2012-36844, and No. FIS2011-28851-C02-02, and by the Basque Government under Project No. PI2012-47 and UPV/EHU Project No. IT-756-13. E.V. and M.I. thank the Basque Government for support through a Ph.D. fellowship (Grants No. BFI-2010-163 and No. BFI-2011-106). ; Peer Reviewed

Under the terms of the Creative Commons Attribution License 3.0 (CC-BY).-- et al. ; The crossover from antidot to dot magnetic behavior on arrays patterned in a ferromagnetic thin film has been achieved by modifying only the geometry. A series of antidot arrays has been fabricated on cobalt with fixed diameter d and by reducing the period of the array p from pd to p