发明申请
- 专利标题: Hcp soft underlayer
- 专利标题(中): Hcp软底层
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申请号: US11712559申请日: 2007-03-01
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公开(公告)号: US20090011283A1公开(公告)日: 2009-01-08
- 发明人: Erol Girt , Raj N. Thangaraj
- 申请人: Erol Girt , Raj N. Thangaraj
- 申请人地址: US CA Scotts Valley
- 专利权人: SEAGATE TECHNOLOGY LLC
- 当前专利权人: SEAGATE TECHNOLOGY LLC
- 当前专利权人地址: US CA Scotts Valley
- 主分类号: G11B5/73
- IPC分类号: G11B5/73 ; B05D5/12
摘要:
A perpendicular magnetic recording medium of the embodiments of the invention comprises a substrate, a hcp soft underlayer (SUL), and a magnetic layer, wherein the hcp SUL is adapted to create a [0002] growth orientation in the magnetic layer and to enhance a magnetic head field during writing of data to the magnetic layer; further wherein the perpendicular magnetic recording medium does not contain an interlayer (IL) that is different from the hcp SUL and provides a [0002] growth orientation in the magnetic layer.