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Juan Carlos Banthí, David Meneses-Rodríguez, Fernando García, María Ujué González, Antonio García-Martín, Alfonso Cebollada and Gaspar Armelles Plasmonics: High Magneto-Optical Activity and Low Optical Losses in Metal-Dielectric Au/Co/Au–SiO2 Magnetoplasmonic Nanodisks (Adv. Mater. 10/2012) Advanced Materials 24

Article first published online: 6 MAR 2012 | DOI: 10.1002/adma.201290058

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The internal architecture of metal-dielectric Au/Co/Au–SiO2 magnetoplasmonic nanodisks provides control over the internal electromagnetic field distribu on by varying the relative contributions of the magneto-optically active layers and the optically lossy layers. This allows simultaneous tuning of the magneto-optical activity and the absorption. On page OP36, A. Cebollada and co-workers show how placing the dielectric between the upper Au layer and the Co produces a configuration of sizeable magneto-optical activity and low optical loss. If the dielectric is placed below the Co, the magneto-optical activity is maintained, but the optical losses are larger.

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