JPS6423443A - Magneto-optical recording medium - Google Patents
Magneto-optical recording mediumInfo
- Publication number
- JPS6423443A JPS6423443A JP17867787A JP17867787A JPS6423443A JP S6423443 A JPS6423443 A JP S6423443A JP 17867787 A JP17867787 A JP 17867787A JP 17867787 A JP17867787 A JP 17867787A JP S6423443 A JPS6423443 A JP S6423443A
- Authority
- JP
- Japan
- Prior art keywords
- film
- fe88co4cr8
- transition metal
- incorporating
- superlattice structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To improve the stability of the squareness ratio of a Kerr loop by laminating a rare earth element and transition metal element into superlattice structure and incorporating Cr into a transition metal layer, thereby forming a magnetic film. CONSTITUTION:While a substrate 1 is kept rotated, a Tb-Fe88Co4Cr8 film 8 is formed thereon by simultaneous binary sputtering using a magnetron type sputtering device and using two targets consisting of Tb and Fe88Co4Cr8. High- frequency electric power is supplied to the Tb target and DC power to the Fe88Co4Cr8 alloy target. The perpendicularly magnetized film 2 obtd. at this time does not have the superlattice structure and is the amorphous film which is homogeneous over the entire part. The magnetic layer constituted by incorporating Cr into the transition metal layer has the extremely stable squareness ratio of the Kerr loop even if the medium is placed under high-temp. and high- humidity conditions or rested in the air.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17867787A JPS6423443A (en) | 1987-07-17 | 1987-07-17 | Magneto-optical recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17867787A JPS6423443A (en) | 1987-07-17 | 1987-07-17 | Magneto-optical recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6423443A true JPS6423443A (en) | 1989-01-26 |
Family
ID=16052626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17867787A Pending JPS6423443A (en) | 1987-07-17 | 1987-07-17 | Magneto-optical recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6423443A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0262741A (en) * | 1988-08-29 | 1990-03-02 | Fuji Photo Film Co Ltd | Magneto-optical recording medium and its manufacture |
-
1987
- 1987-07-17 JP JP17867787A patent/JPS6423443A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0262741A (en) * | 1988-08-29 | 1990-03-02 | Fuji Photo Film Co Ltd | Magneto-optical recording medium and its manufacture |
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