发明名称 |
Hard magnetic film structural body, magnetoresistance effect device thereof, magnetic head, magnetic recording/reproducing head thereof, and magnetic record medium thereof, and magnetic storing apparatus thereof |
摘要 |
A base film of a hard magnetic film containing Co as a structural element has a crystal metal base film such as a Cr film formed on the main surface of a substrate and a reactive base film (mixing layer) formed between the substrate and the crystal metal base film and having a reactive amorphous layer containing a structural element of the substrate and a structural element of the crystal metal base film. A hard magnetic film containing Co as a structural element is formed on the crystal metal base film. With the crystal metal base film such as the Cr film formed on an amorphous layer, a hard magnetic film with a bi-crystal structure can be obtained with high reproducibility. With the hard magnetic film, magnetic characteristics such as coercive force Hc, residual magnetization Mr, saturated magnetization Ms, and square ratio S can be improved without need to use a thick base film. The hard magnetic film containing Co as a structural element is applied to a bias magnetic field applying film of a magnetoresistance effect device and a record layer of a magnetic record medium.
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申请公布号 |
US2006198063(A1) |
申请公布日期 |
2006.09.07 |
申请号 |
US20060417195 |
申请日期 |
2006.05.04 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
FUKUZAWA HIDEAKI;NAKAMURA SHIN-ICHI;KAMIGUCHI YUZO;IWASAKI HITOSHI;HORI AKIO;HASHIMOTO SUSUMU |
分类号 |
G11B5/127;G11B5/33 |
主分类号 |
G11B5/127 |
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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