Garnet-type magnetic material high faraday rotation magnetic fil

Details Garnet-type magnetic material high faraday rotation magnetic fil Garnet-type magnetic material high faraday rotation magnetic fil

1985-10-15

1987-10-06

Lesmes, George F.

Stock material or miscellaneous articles

Composite

Of inorganic material

252 6257, 427127, 427128, 427162, 428693, 428697, 428699, 428700, 428701, 428702, 428900, G11B 724

Patent

active

046982817

ABSTRACT:
The invention relates to a magnetic material containing either one or more rare earth elements, chosen from among lutetium, thulium and ytterbium, or yttrium. It also relates to a magnetic film with a high Faraday rotation constituted by a substrate coated with an epitactic layer of a magnetic material of the aforementioned type.
The process for the production of such a magnetic film involves the deposition of a garnet film by liquid phase epitaxy on a substrate, use being made of an epitaxy bath containing gadolinium oxide, praseodymium oxide, and at least one oxide of a metal M, bismuth oxide, iron oxide, gallium oxide and/or aluminium oxide and a solvent incorporating lead oxide and boron oxide.

REFERENCES:
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patent: 4350559 (1982-09-01), Boudot et al.
patent: 4433034 (1984-02-01), Gwaltieri et al.
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patent: 4532180 (1985-07-01), Ohta et al.
patent: 4622264 (1986-11-01), Hosoe et al.
patent: 4647514 (1987-03-01), LeCraw et al.
Randles, "Liquid Phase Epitaxial Growth of Magnetic Garnets"chapter 2 of Crystals Springer-Verlag Publishers, NY 1978, pp. 71-96.

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