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- Title
Magnetooptical properties of Co-SiO<sub>2</sub> granular films.
- Authors
Kravets, V. G.; Poperenko, L. V.
- Abstract
The structural, optical, and magnetooptical properties of Co-SiO2 granular films are studied. It is found that the magnetooptical response is considerably enhanced in samples with a metal component concentration close to the percolation threshold. The Co nanogranules formed in the SiO2 matrix exhibit ferromagnetic properties and are ordered into the fcc structure, which is confirmed by magnetooptical investigations. The magnetooptical properties of nanocomposites are simulated in the effective-medium approximation. It is shown that the singularities found in the magnetooptical spectra are related to the excitation of plasmon resonances in granular films.
- Subjects
MAGNETOOPTICS; PERCOLATION theory; FERROMAGNETISM; SURFACE plasmon resonance; RESONANCE
- Publication
Optics & Spectroscopy, 2008, Vol 104, Issue 4, p610
- ISSN
0030-400X
- Publication type
Article
- DOI
10.1134/S0030400X08040206