| Presentation | 2005/6/10 Design of Patterned Media for 1 Tbit/in^2 Recording Naoki HONDA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Patterned magnetic recording media were designed aiming at 1 Tbit/in^2. Thermal stability condition was determined using minimum nucleation field. Use of larger saturation magnetization and the inclined applied field was found to be effective to reduce the required recording field strength. It was found from the simulation analysis based on a small element cells that a coherent magnetization reversal is realized for dots with the aspect ratio of less than 3/2, wall structure of the dot affect on its coercivity, both small dot-spacing and a large dispersion in the anisotropy reduces the nucleation field and increases the recording field. Recording simulation revealed that the shift margin in the cross track direction is much smaller than that in the down track direction, which limits the dot size to be less than half of the dot-period. Elongated dots in the down track exhibited increased cross track shift margin. Realization of 1 Tbit/in^2 recording would be realized using proposed patterned media. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 1 Tbit/in2 recording / Patterned media / Magnetic simulation / Dot size / Shift margin in recording |
| Paper # | MR2005-15 |
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| Conference Information | |
| Committee | MR |
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| Conference Date | 2005/6/10(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) | Design of Patterned Media for 1 Tbit/in^2 Recording |
| Sub Title (in English) | |
| Keyword(1) | 1 Tbit/in2 recording |
| Keyword(2) | Patterned media |
| Keyword(3) | Magnetic simulation |
| Keyword(4) | Dot size |
| Keyword(5) | Shift margin in recording |
| 1st Author's Name | Naoki HONDA |
| 1st Author's Affiliation | Akita Research Institute of Advanced Technology, Akita Prefectural R & D Center() |
| Date | 2005/6/10 |
| Paper # | MR2005-15 |
| Volume (vol) | vol.105 |
| Number (no) | 115 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |