Composite material for magnetooptic recording its preparation an

Details Composite material for magnetooptic recording its preparation an Composite material for magnetooptic recording its preparation an

1998-02-25

2000-01-25

Kiliman, Leszek

Stock material or miscellaneous articles

Composite

Of inorganic material

428694SC, 428694GT, 428900, 427128, 427129, 427130, 427377, 427380, 427501, 427596, 427597, G11B 566

Patent

active

060176458

ABSTRACT:
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.

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