Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1995-03-10
1997-06-03
Kiliman, Leszek
Stock material or miscellaneous articles
Composite
Of inorganic material
428694SC, 428694MT, 428694LE, 428694RE, 428694MM, 369 13, 369283, 369286, G11B 566, G11B 1100, G11B 370, G11B 726
Patent
active
056353090
ABSTRACT:
An amorphous magnetic thin film of TbDyFeCo alloy is described, which is a multi-layer film formed by alternately laminating a TbFeCo layer and a DyFeCo layer on a substrate and has an axis of easy magnetization perpendicular to a film surface, wherein, when the composition of the magnetic thin film is represented by Tb.sub.x Dy.sub.y (Fe.sub.1 -.sub.z Co.sub.z)1-(x+y) and when x, y and z are within ranges of 0<x.ltoreq.0.12, 0<y.ltoreq.0.12, and 0<z .ltoreq.0.30, a condition to be satisfied by x and y is 0.25.ltoreq.x/(x+y). Consequently, an inexpensive magneto-optical recording medium with an improved C/N ratio is manufactured.
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Conlin David G.
Kiliman Leszek
LaVilla Michael
Neuner George W.
Sharp Kabushiki Kaisha
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