| 发明名称 |
DAMPING CONTROLLED COMPOSITE MAGNETIC MEDIA FOR HEAT ASSISTED MAGNETIC RECORDING |
| 摘要 |
A magnetic stack includes a substrate and a magnetic recording layer disposed over the substrate. The magnetic recording layer comprises magnetic crystalline grains and a segregant disposed between grain boundaries of the crystalline grains. One or both of the magnetic crystalline grains and the segregant are doped with a rare earth or transition metal dopant in an amount that provides the magnetic recording layer with a magnetic damping value, α, between about 0.1 to about 1. |
| 申请公布号 |
US2014272473(A1) |
申请公布日期 |
2014.09.18 |
| 申请号 |
US201313802354 |
申请日期 |
2013.03.13 |
| 申请人 |
Seagate Technology LLC |
发明人 |
Chen Xi;Peng Yingguo;Thiele Jan-Ulrich;Ju Ganping;Roscamp Thomas |
| 分类号 |
G11B5/716;G11B5/68 |
主分类号 |
G11B5/716 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A magnetic stack, comprising:
a substrate; and magnetic recording layer disposed over the substrate and comprising magnetic crystalline grains and a segregant disposed between grain boundaries of the crystalline grains; wherein one or both of the magnetic crystalline grains and the segregant are doped with a rare earth metal or transition metal dopant in an amount that provides the magnetic recording layer with a magnetic damping parameter value, α, between about 0.1 to about 1. |
| 地址 |
Cupertino CA US |
