| Presentation | 2004/7/1 Calculation of Magnetization Configurations of SPT Head using Micro-magnetic Model Akio Suzuki, Kazuetsu Yoshida, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The whole magnetization configurations of Single-Pole-Type Head and double-layered-medium are calculated using a micro magnetic model, taking into account the magneto-static interactions between an SPT head and a medium. This method enable us to obtain nano-scale magnetic structures formed in an SPT head which couldn't be obtained with a conventional method using a macro-model such as B-H curves. The head field strength at a spacing of 7.5 nm beneath the main-pole, its Ms=2.0 Wb/m^2, reaches 950 kA/m including the image field of soft-underlayer. A complicated vortex-like magnetic domain and walls appear in the main-pole and the return pole. Especially, the edges of a return-pole the magnetizations have large normal component to the air bearing surface which results in localized strong stray fields from the wings of return-pole. The stray fields might erase the recorded bits on the neghboring tracks. Also, it is estimated that the delay time of a head field to the exciting field is 0.4 ns under the calculation conditions of this paper. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Micromagnetics / Single-Pole-Type head / Return-pole / Double-layered medium |
| Paper # | MR2004-5 |
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| Conference Information | |
| Committee | MR |
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| Conference Date | 2004/7/1(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| 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) | Calculation of Magnetization Configurations of SPT Head using Micro-magnetic Model |
| Sub Title (in English) | |
| Keyword(1) | Micromagnetics |
| Keyword(2) | Single-Pole-Type head |
| Keyword(3) | Return-pole |
| Keyword(4) | Double-layered medium |
| 1st Author's Name | Akio Suzuki |
| 1st Author's Affiliation | Kogakuin University() |
| 2nd Author's Name | Kazuetsu Yoshida |
| 2nd Author's Affiliation | Kogakuin University |
| Date | 2004/7/1 |
| Paper # | MR2004-5 |
| Volume (vol) | vol.104 |
| Number (no) | 166 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |