PLASMON-SPIN PHENOMENA OF NANOPARTICLES COBALT IN CO-AG AND CO-AL2O3 THIN FILMS
Abstract
Plasmonic phenomena have been studied for a long time in the world [1-8]. However, the number of papers on spin-plasmonic phenomena is relatively limited [9, 10]. Therefore, the research problem of this paper is new. These are very basic physical phenomena of the photon-spin interactions, photon-magnon interactions. We have used two methods of high-frequency sputtering and evaporation in a vacuum to fabricate nanoparticles Cobalt on Co-Ag và Co-Al2O3 thin films. Transmission spectra and reflection spectra of Co-Ag and Co-Al2O3 thin films there are manifestations quite clearly modulated by the nanomagnetic nature in the material, specifically the ferromagnetic nature of the nanoparticles Co, depends on the proportion of ferromagnetic components in the thin film, also affected by external magnetic fields. The nano-optical properties can indirectly partly reflect the properties of spin-plasmonic phenomena and spin-photon interaction.
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