发明名称 |
AMORPHOUS MAGNETO OPTICAL RECORDING MEDIUM |
摘要 |
AMORPHOUS MAGNETO OPTICAL RECORDING MEDIUM A magneto optical thin film recording medium is disclosed having very high carrier-to-noise ratios and high rotation angles. A transmission electron microscope photomicrograph (at 200,000 X) of one such medium is shown in Figure 1. These are multi-phase amorphous materials having magnetic anisotropy perpendicular to the plane of the thin film. They are produced in a triode vacuum sputtering process at vacuums in the range of 4 x 10-3 to 6 x 10-4 Torr. By adjusting process parameters such as substrate temperature, anode bias and deposition rate, the properties of the thin film can be altered. |
申请公布号 |
CA1217859(A) |
申请公布日期 |
1987.02.07 |
申请号 |
CA19840453431 |
申请日期 |
1984.05.03 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
GARDNER, RICHARD N. |
分类号 |
H01F41/18;G02F1/00;G11B5/64;G11B5/72;G11B5/851;G11B7/24;G11B11/10;G11B11/105;G11C11/14;G11C13/06;H01F10/12;H01F10/13 |
主分类号 |
H01F41/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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