Invention Application
- Patent Title: PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE APPARATUS
- Patent Title (中): 全磁磁记录介质和磁存储设备
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Application No.: US12403215Application Date: 2009-03-12
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Publication No.: US20090296278A1Publication Date: 2009-12-03
- Inventor: Ryosaku Inamura , Yuta Toyoda
- Applicant: Ryosaku Inamura , Yuta Toyoda
- Applicant Address: JP Kawasaki-shi
- Assignee: FUJITSU LIMITED
- Current Assignee: FUJITSU LIMITED
- Current Assignee Address: JP Kawasaki-shi
- Priority: JP2008-142916 20080530
- Main IPC: G11B5/82
- IPC: G11B5/82 ; G11B5/66 ; G11B5/667

Abstract:
A perpendicular magnetic recording medium includes a nonmagnetic seed layer, a nonmagnetic intermediate layer provided on the nonmagnetic seed layer, and a perpendicular recording layer provided on the nonmagnetic intermediate layer. The nonmagnetic seed layer includes a first seed layer made of an amorphous material, and a second seed layer provided between the first seed layer and the nonmagnetic intermediate layer and made of a material having a fcc structure. The amorphous material includes at least one element selected from a group consisting of Ta, W, Nb, Mo, Zr and alloys thereof which include at least one of Ta, W, Nb, Mo and Zr as a main component exceeding 50 at. %.
Public/Granted literature
- US07871718B2 Perpendicular magnetic recording medium and magnetic storage apparatus Public/Granted day:2011-01-18
Information query
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