Title:
HEAT-ASSISTED MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/021652
Kind Code:
A1
Abstract:
Provided is a heat-assisted magnetic recording medium which comprises a substrate (1), undercoat layers formed on the substrate (1), and a magnetic layer (5) formed on the undercoat layers, the magnetic layer (5) comprising an Fe-Pt alloy having an L10 structure or a Co-Pt alloy having an L10 structure as a major component, wherein the undercoat layers are composed of a first undercoat layer (2) constituted of an amorphous alloy, a second undercoat layer (3) constituted of an alloy of a BCC structure comprising Cr as the main component and further containing at least one element selected from Ti, Mo, W, V, Mn, and Ru, and a third undercoat layer (4) constituted of MgO. Also provided is a magnetic storage device including the heat-assisted magnetic recording medium.
Inventors:
KANBE TETSUYA (JP)
SASAKI YUZO (JP)
HASHIMOTO ATSUSHI (JP)
SASAKI YUZO (JP)
HASHIMOTO ATSUSHI (JP)
Application Number:
PCT/JP2010/063963
Publication Date:
February 24, 2011
Filing Date:
August 19, 2010
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
KANBE TETSUYA (JP)
SASAKI YUZO (JP)
HASHIMOTO ATSUSHI (JP)
KANBE TETSUYA (JP)
SASAKI YUZO (JP)
HASHIMOTO ATSUSHI (JP)
International Classes:
G11B5/738; G11B5/02; G11B5/64; G11B5/667
Domestic Patent References:
| WO2008030199A1 | 2008-03-13 |
Foreign References:
| JP2009158054A | 2009-07-16 | |||
| JP2004213833A | 2004-07-29 | |||
| JP2002208129A | 2002-07-26 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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