| Presentation | 1999/12/13 Preparation of low noise perpendicular double layered medium Jun ARIAKE, Takanori KIYA, Naoki HONDA, Kazuhiro OUCHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A reduction method of the medium noise which will be a serious problem for future ultra high density recording was studied. It was thought that a double layered perpendicular recording medium developed so far shows a rather large medium noise. It was found that a medium noise of a double layered medium could be reduced when the noise from a recording layer was reduced, To realize this, we proposed (1) to insert a very thin intermediate layer between a soft magnetic back layer and a recording layer and (2) to add a small amount of nitrogen during deposltion of the back layer. Though the intermediate layer deteriorates the crystal growth of the recording layer, a fine grain size and a fine magnetic domain size of the recording layer could be realized on the soft magnetic back layer. Nitrogen addition to the back layer had an effect to grow it with multiple crystal orientations that led to realize a fine grain growth of the recording layer. Finally, the noise from the recording layer rather than that from the soft magnetic backlayer is dominant medium noise for the double layered medium. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | double layered perpendicular magnetic medium / low noise property / Co-Cr-Nb-Pt / intermediate layer / nitrogen addition / noise spectrum |
| Paper # | MR99-66 |
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| Conference Information | |
| Committee | MR |
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| Conference Date | 1999/12/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Magnetic Recording (MR) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Preparation of low noise perpendicular double layered medium |
| Sub Title (in English) | |
| Keyword(1) | double layered perpendicular magnetic medium |
| Keyword(2) | low noise property |
| Keyword(3) | Co-Cr-Nb-Pt |
| Keyword(4) | intermediate layer |
| Keyword(5) | nitrogen addition |
| Keyword(6) | noise spectrum |
| 1st Author's Name | Jun ARIAKE |
| 1st Author's Affiliation | AIT (Akita Research Institute of Advanced Technology)() |
| 2nd Author's Name | Takanori KIYA |
| 2nd Author's Affiliation | AIT (Akita Research Institute of Advanced Technology) |
| 3rd Author's Name | Naoki HONDA |
| 3rd Author's Affiliation | AIT (Akita Research Institute of Advanced Technology) |
| 4th Author's Name | Kazuhiro OUCHI |
| 4th Author's Affiliation | AIT (Akita Research Institute of Advanced Technology) |
| Date | 1999/12/13 |
| Paper # | MR99-66 |
| Volume (vol) | vol.99 |
| Number (no) | 495 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |