J. Phys. IV France 07 (1997) C1-729-C1-730
Optical and Magnetooptical Properties of Copper and Cobalt-Manganese Ferrite Thin FilmsL. Stichauer1, Z. Simsa1, P. Tailhades2 and C. Despax2
1 Institute of Physics AS CR, Cukrovarnická 10, 16200 Praha 6, Czech Republic
2 Laboratoire de Chimie des Matériaux Inorganiques, URA 1311 du CNRS, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse cedex, France
Optical absorption and Faraday rotation of copper and cobalt-manganese ferrite thin films, prepared by sputtering, were measured in the visible and near infrared spectral regions. Main magneto-optical features can be explained by the respective transitions of CU2+ and Co2+ ions tetrahedrally and octahedrally coordinated. Annealings at 450 and 665°C cause migration of these ions into tetrahedral positions and, consequently, increase corresponding peaks in the figure of merit. Therefore, these films range among the promissing materials for the magneto-optical recording.
© EDP Sciences 1997