2016 Fiscal Year Final Research Report
Development of CoPtRh granular media high uniaxial magnetocrystalline anisotropy for heat assisting magnetic recording
| Project/Area Number |
26820109
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 熱アシスト磁気記録 / 一軸結晶磁気異方性 / 積層欠陥 / グラニュラ構造 / CoPtRh |
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| Outline of Final Research Achievements |
A granular medium with columnar structure with huge-uniaxial-magnetogrystalline-anisotropy (Ku) CoPtRh was investigated for future thermally assisted recording system.
As a result of the research, it was found that; 1) To obtain high-Ku CoPtRh based alloy, depositing CoPt based alloy with average valence electron number of 9 or less under substrate temperature of 300 oC. 2) To obtain granular medium with columnar structure, addition of composite material consist of low- and high-melting-point oxides, such as B2O3+TiO2 is effective to form a non-magnetic boundary.
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| Free Research Field |
磁性薄膜
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