Metal treatment – Stock – Magnetic
Patent
1988-10-17
1991-02-26
Morris, Theodore
Metal treatment
Stock
Magnetic
148403, 420463, 420466, 428928, H01F 1153
Patent
active
049959239
ABSTRACT:
A thin film of an amorphous alloy comprising (i) at least one element selected from Fe and Co, (ii) at least one element selected from Pt and Pd and (iii) at least one element selected from (a) 3d transition elements other than Fe and Co, (b) 4d transition elements other than Pd, (c) 5d transition elements other than Pt, (d) light rare earth elements, (e) Group III B elements, (f) Group IV B elements, (g) Group V B elements, and (h) Group VI B elements, and the film having an easy axis of magnetization perpendicular to the film face. The thin film has excellent magnetooptical characteristics including increased coercive force and large Kerr-rotation angle and Faraday-rotation angle, and is excellent in resistance to oxidation and in consequence the coercive force and Kerr-angle of the film do not substantially change with time. The film has a high reflectance as well.
REFERENCES:
patent: 4236946 (1980-12-01), Aboaf et al.
patent: 4439253 (1984-03-01), Ramanan
patent: 4654276 (1987-03-01), Ahlert et al.
patent: 4789598 (1988-12-01), Howard et al.
patent: 4814027 (1989-03-01), Masumoto et al.
patent: 4885134 (1989-12-01), Hatwar
Patent Abstracts of Japan, vol. 10, No. 127, May 13, 1986, Publication No. 60-253040, (Kokai).
Haruta Koichi
Kajiura Hirokazu
Mizumoto Kunihiko
Mitsui Petrochemical Industries Ltd.
Morris Theodore
Wyszomierski George
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