发明名称 |
Perpendicular magnetic recording media, manufacturing process of the same, and magnetic storage apparatus using the same |
摘要 |
Provided are a double-layer perpendicular magnetic recording medium having a high medium S/N at an areal recording density of 50 Gbits or more per square inch, and a magnetic storage apparatus having excellent reliability with a low error rate. The perpendicular magnetic recording medium is formed by sequentially laminating a domain control layer, an amorphous soft magnetic underlayer, an intermediate layer, and a perpendicular recording layer on a substrate. The domain control layer is a triple-layer film formed by laminating a first polycrystalline soft magnetic layer, a disordered antiferromagnetic layer, and a second polycrystalline soft magnetic layer from a substrate side.
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申请公布号 |
US7153546(B2) |
申请公布日期 |
2006.12.26 |
申请号 |
US20040790803 |
申请日期 |
2004.03.03 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN, LTD. |
发明人 |
TANAHASHI KIWAMU;KIKUGAWA ATSUSHI;SHIMIZU NOBORU;HONDA YUKIO;HOSOE YUZURU |
分类号 |
H05B6/00;G11B5/65;G11B5/66;G11B5/667;G11B5/73;G11B5/738;G11B5/851;G11B5/852 |
主分类号 |
H05B6/00 |
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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