Global Patent Index - EP 0186528 B1

EP 0186528 B1 19890322 - MAGNETIC GARNET MATERIAL, MAGNETIC FILM WITH A STRONG FARADAY ROTATION COMPRISING SUCH A MATERIAL AND MANUFACTURING METHOD THEREFOR

Title (en)

MAGNETIC GARNET MATERIAL, MAGNETIC FILM WITH A STRONG FARADAY ROTATION COMPRISING SUCH A MATERIAL AND MANUFACTURING METHOD THEREFOR

Publication

EP 0186528 B1 19890322 (FR)

Application

EP 85402075 A 19851025

Priority

FR 8416763 A 19841102

Abstract (en)

[origin: US4698281A] 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.

IPC 1-7

H01F 10/24; C30B 29/28; C30B 19/02

IPC 8 full level

C01G 49/00 (2006.01); C30B 29/28 (2006.01); G11B 11/10 (2006.01); G11B 11/105 (2006.01); G11C 13/06 (2006.01); H01F 10/24 (2006.01); H01F 41/28 (2006.01)

CPC (source: EP US)

H01F 10/245 (2013.01 - EP US); H01F 41/28 (2013.01 - EP US); Y10S 428/90 (2013.01 - EP US)

Designated contracting state (EPC)

DE GB IT NL

DOCDB simple family (publication)

FR 2572844 A1 19860509; FR 2572844 B1 19861226; DE 3569059 D1 19890427; EP 0186528 A1 19860702; EP 0186528 B1 19890322; JP S61110408 A 19860528; US 4698281 A 19871006

DOCDB simple family (application)

FR 8416763 A 19841102; DE 3569059 T 19851025; EP 85402075 A 19851025; JP 24068385 A 19851029; US 78706285 A 19851015