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DAMPING CONTROLLED COMPOSITE MAGNETIC MEDIA FOR HEAT ASSISTED MAGNETIC RECORDING 发明申请

2023-04-29 3490 2404K 0

专利信息

申请日期 2025-06-24 申请号 WOUS14019265
公开(公告)号 WO2014143564A1 公开(公告)日 2014-09-18
公开国别 WO 申请人省市代码 全国
申请人 SEAGATE TECHNOLOGY LLC; CHEN Xi; PENG Yingguo; THIELE Janu Ulrich; ROSCAMP Thomas; JU Ganping
简介 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, a, between about 0.1 to about 1.


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