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Erschienen in: Journal of Nanoparticle Research 6/2011

01.06.2011 | Research paper

Optical and magneto-optical properties of Co–SiOx thin films

verfasst von: R. Fermento, J. B. González-Díaz, A. Cebollada, G. Armelles, M. Díaz, L. Martínez, E. Román, Y. Huttel, C. Ballesteros

Erschienen in: Journal of Nanoparticle Research | Ausgabe 6/2011

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Abstract

The optical and magneto-optical properties of hybrid Co–SiOx systems are studied as a function of Co concentration. The structures were prepared by alternate depositions of SiOx thin films and layers of 10-nm-diameter Co nanoparticles produced by an Ion Cluster Source. Both optical and magneto-optical constants of the system gradually increase with the amount of Co, though maintaining low optical absorption values in the visible range. The experimental results are well reproduced assuming that the nanoparticles have a cobalt core (7–8 nm in diameter) surrounded by a cobalt oxide shell (1–2 nm thick). The magneto-optical activity versus optical absorption figure of merit of this system is compared with other magneto-optical dielectric systems.

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Metadaten
Titel
Optical and magneto-optical properties of Co–SiOx thin films
verfasst von
R. Fermento
J. B. González-Díaz
A. Cebollada
G. Armelles
M. Díaz
L. Martínez
E. Román
Y. Huttel
C. Ballesteros
Publikationsdatum
01.06.2011
Verlag
Springer Netherlands
Erschienen in
Journal of Nanoparticle Research / Ausgabe 6/2011
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-010-0158-1

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