Atg-cygnet

Centre National De La Recherche Scientifique

Universite Toulouse III – Paul Sabatier

Isabelle Pasquet

Abel C Rousset

Jean-Pierre Bonino

Philippe Tailhades

Lionel Presmanes

Laurence Bouet

Véronique Conedera

Patrick Langlade

Valérie Baco

Hoa Le Trong

Pierre-François Calmon

Composite material for magnetooptic recording, comprising a thin layer deposited on a non-magnetic solid substrate. The said thin layer is a polycrystalline layer consisting of microcrystals having a structure of a vacant-site spinel ferrite, based on iron, cobalt and transition metals. By virtue of a particular process for producing the thin layers, enabling especially the size of the crystallites to be increased, it is possible to optimize the magnetic and magnetooptic properties and to obtain thin layers having, for example, a remanent Faraday rotation and a coercive field which are greater, respectively, than 1 degree per micron for the Faraday rotation and 1000 Oe for the coercive field.

Composite material for magnetooptic recording its preparation and its use

Growing community of inventors

Ramonville, France

Isabelle Pasquet