Magneto-optical thin-layer structure

Details Magneto-optical thin-layer structure Magneto-optical thin-layer structure

1997-04-23

2000-11-07

Jones, Deborah

Stock material or miscellaneous articles

Composite

Of inorganic material

369 13, G11B 564, H01F 1024, H01F 1026

Patent

active

061434353

ABSTRACT:
The invention relates to magneto-optical structures applicable in systems for optical processing of information, in sensors and converters of magnetic field. The technical result is comprised in increase of resolution and sensitivity, ensuring high value of Faraday rotation of polarized light and high speed of operation when pulses of external magnetic field are applied. In the magneto-optical structure, comprised of underlay 1 formed of a mono-crystal of gadolinium-gallium ferrite-garnet, on which deposed is a film 2 of bismuth containing gallium ferrite-garnet with vector 3 of magnetization lying in the plane of the film, crystallographic axis [100] 5 of the underlay mono-crystal 1 is offset relative to the perpendicular 4 to the underlay plane at an angle not exceeding the magnitude of deflection to the crystallographic axis [210] 6, preferably in the range from 0 deg to 4 deg inclusive, and the bismuth containing ferrite-garnet is doped with rare-earth elements, preferably thulium, gadolinium, lutetium or their combinations.

REFERENCES:
patent: 4625390 (1986-12-01), Shone et al.
patent: 4893909 (1990-01-01), Hansen et al.
patent: 5463316 (1995-10-01), Shirai et al.
patent: 5473466 (1995-12-01), Tanielian et al.
Papakonstantinou et al., J. Mag. Mag. Mat. 163 (1996), pp. 378-392, (no month).

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