发明名称 |
Electrically conductive underlayer to grow FePt granular media with (001) texture on glass substrates |
摘要 |
A perpendicular magnetic recording medium, comprising: a substrate; a buffer layer deposited in a first orientation on top of the substrate; an underlayer deposited in a second orientation on top of the buffer layer, the underlayer comprising an electrically conductive oxide; and a magnetic recording layer deposited on top of the underlayer and having an axis of magnetic anisotropy substantially perpendicular to the surface thereof. |
申请公布号 |
US8993134(B2) |
申请公布日期 |
2015.03.31 |
申请号 |
US201213537379 |
申请日期 |
2012.06.29 |
申请人 |
Western Digital Technologies, Inc. |
发明人 |
Varaprasad Bollapragada;Takahashi Yukiko;Hono Kazuhiro;Ajan Antony;Yuan Hua;Chernyshov Alexander S. |
分类号 |
G11B5/66;G11B5/73;G11B5/84;G11B5/851 |
主分类号 |
G11B5/66 |
代理机构 |
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代理人 |
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主权项 |
1. A perpendicular magnetic recording medium, comprising:
a substrate; a buffer layer deposited in a first orientation on top of the substrate; an underlayer deposited in a second orientation on top of the buffer layer, the underlayer comprising an electrically conductive oxide of Mg with one or more of Ti, Zr and Hf, the oxide comprising between 5 and 35 atomic percent Mg; and a magnetic recording layer deposited on top of the underlayer and having an axis of magnetic anisotropy substantially perpendicular to the surface thereof. |
地址 |
Irvine CA US |