发明授权
- 专利标题: Thermally-assisted magnetic recording medium and magnetic recording/reproducing device using the same
- 专利标题(中): 热辅助磁记录介质和使用其的磁记录/再现装置
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申请号: US13182623申请日: 2011-07-14
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公开(公告)号: US08599652B2公开(公告)日: 2013-12-03
- 发明人: Satoshi Tomikawa , Tomohito Mizuno
- 申请人: Satoshi Tomikawa , Tomohito Mizuno
- 申请人地址: JP Tokyo
- 专利权人: TDK Corporation
- 当前专利权人: TDK Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Posz Law Group, PLC
- 主分类号: G11B11/00
- IPC分类号: G11B11/00
摘要:
A thermally-assisted magnetic recording (TAMR) medium of the present invention includes: a magnetization direction arrangement layer on a substrate; and a magnetic recording layer on the magnetization direction arrangement layer, wherein the magnetization direction arrangement layer is made of at least one selected from a group consisting of Co, Zr, CoZr, CoTaZr, CoFeTaZrCr, CoNbZr, CoNiZr, FeCoZrBCu, NiFe, FeCo, FeAlN, (FeCo)N, FeAlSi, and FeTaC so that a spreading of the heating spot applied from the magnetic head for thermally-assisted recording to the film surface of the magnetic recording medium is suppressed, and that an SN is improved by arranging the magnetization direction of the perpendicularly written recording magnetization to become identical to a perpendicular direction, and realizing the higher recording density.
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