Invention Grant
US09406329B1 HAMR media structure with intermediate layer underlying a magnetic recording layer having multiple sublayers
有权
具有中间层的HAMR介质结构位于具有多个子层的磁记录层之下
- Patent Title: HAMR media structure with intermediate layer underlying a magnetic recording layer having multiple sublayers
- Patent Title (中): 具有中间层的HAMR介质结构位于具有多个子层的磁记录层之下
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Application No.: US14954397Application Date: 2015-11-30
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Publication No.: US09406329B1Publication Date: 2016-08-02
- Inventor: Hoan Cong Ho , Hua Yuan , Tomoko Seki , Antony Ajan , Paul C. Dorsey
- Applicant: WD Media, LLC
- Applicant Address: US CA San Jose
- Assignee: WD Media, LLC
- Current Assignee: WD Media, LLC
- Current Assignee Address: US CA San Jose
- Main IPC: G11B11/00
- IPC: G11B11/00 ; G11B5/738 ; G11B5/66 ; G11B5/73 ; G11B5/84 ; G11B5/00
Abstract:
Segregants for magnetic recording layers and materials for intermediate layers underlying the magnetic recording layers are provided for improved heat assisted magnetic recording (HAMR) media. One such HAMR medium includes a substrate, a heat sink layer on the substrate, an underlayer on the heat sink layer, an intermediate layer of TiON, VON, CrON, TiOC, VOC, TiONC, and/or combinations thereof, on the underlayer, and a magnetic recording layer of FePt on the intermediate layer. The magnetic recording layer further includes three sublayers, each having a different segregant. The segregant of the first magnetic recording sublayer on the intermediate layer includes AgBN, AgCN, AgBNC, AgB2O3, AgMoO3, AgV2O5, B2O3, MoO3, V2O5, and/or combinations thereof.
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