2011 Fiscal Year Final Research Report
Fabrication of anodic porous alumina with reduced hole interval and its application for the high-density magnetic recording media
| Project/Area Number |
21245048
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic industrial materials
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
MASUDA Hideki 首都大学東京, 都市環境科学研究科, 教授 (90190363)
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| Co-Investigator(Kenkyū-buntansha) |
KONDO Toshiaki (財)神奈川科学技術アカデミー, 重点研究室, 研究員 (20513716)
NISHIO Kazuyuki 首都大学東京, 都市環境科学研究科, 准教授 (00315756)
YANAGISHITA Takashi 首都大学東京, 都市環境学研究科, 助教 (50392923)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 高密度磁気記録媒体 / パターンドメディア / 強磁性体 |
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| Research Abstract |
We studied formation of highly ordered anodic porous alumina with fine interval. As a result, we found anodizing conditions for forming highly ordered porous alumina with interval less than 25 nm. Ferromagnetic Co was electrochemically deposited in nanoholes of the porous alumina. Then, surface of the sample was flattened by dry etching or mechanical polishing. It was confirmed by Vibrating Sample Magnetometer measurement that the sample shows high squareness ratio(～0. 95) by control of the structure of Co/alumina nanocomposite.
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