| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|
|---|---|---|
| Page(s) | C8-1809 - C8-1810 | |
| DOI | https://doi.org/10.1051/jphyscol:19888826 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1809-C8-1810
DOI: 10.1051/jphyscol:19888826
1 Laboratoire de Magnétisme, CNRS, 92195 Meudon Cedex, France
2 ITSE-CNR, CP 10, 00016 Monterotondo Stazione, Italy
3 Department of Physics, University of L'Aquila 67100 Italy
J. Phys. Colloques 49 (1988) C8-1809-C8-1810
DOI: 10.1051/jphyscol:19888826
TEMPERATURE DEPENDENCE OF MAGNETO-OPTICAL EFFECTS ON Fe - Al2O3 GRANULAR FILMS
J.L. Dormann1, D. Fiorani2, F. Lucari3 et G. Parone31 Laboratoire de Magnétisme, CNRS, 92195 Meudon Cedex, France
2 ITSE-CNR, CP 10, 00016 Monterotondo Stazione, Italy
3 Department of Physics, University of L'Aquila 67100 Italy
Abstract
Faraday and Magnetic Circular Dichroism measurements in the region of near infrared are performed in the temperature range 4 < T < 300 K on Fe - Al2O3 granular films. The intensities of the observed transitions, due to Fe2+ and Fe3+ ions, remain constant below characteristic temperatures depending on iron concentration and on the average particle's dimensions.