| Presentation | 2001/6/20 Observation Technique of High Frequency Magnetization for HDD Head Evaluation using Magneto-Optic Sampling Technology Shinichi Wakana, Toshiaki Nagai, Yuji Sakata, Hidenori Sekiguchi, Akio Ito, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Understanding the behavior of the magnetic head in high frequency region is indispensable to quicken the development of the high performance hard disk drive. We have developed a high-speed magnetization observation system for the evaluation of the magnetic head using the magnetic Kerr effect and the optical sampling technique. The system observes the magnetization of the magnetic pole of the head by detecting the polarization rotation of the reflected light. It can observe the temporal variation and spatial distribution of the magnetization. The spatial resolution and the measurement bandwidth of the prototype system were 0.2 mm and 5 GHz, respectively. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Hard disk drive / Magnetic head / Magnetization / Magneto-optic effect / Magnetic Kerr effect / Optical-sampling technique |
| Paper # | MW2001-42,OPE2001-29 |
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| Conference Information | |
| Committee | MW |
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| Conference Date | 2001/6/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Microwaves (MW) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Observation Technique of High Frequency Magnetization for HDD Head Evaluation using Magneto-Optic Sampling Technology |
| Sub Title (in English) | |
| Keyword(1) | Hard disk drive |
| Keyword(2) | Magnetic head |
| Keyword(3) | Magnetization |
| Keyword(4) | Magneto-optic effect |
| Keyword(5) | Magnetic Kerr effect |
| Keyword(6) | Optical-sampling technique |
| 1st Author's Name | Shinichi Wakana |
| 1st Author's Affiliation | FUJITSU LABORATORIES LTD. Sensing and Control System Laboratory() |
| 2nd Author's Name | Toshiaki Nagai |
| 2nd Author's Affiliation | FUJITSU LABORATORIES LTD. Sensing and Control System Laboratory |
| 3rd Author's Name | Yuji Sakata |
| 3rd Author's Affiliation | FUJITSU LABORATORIES LTD. Sensing and Control System Laboratory |
| 4th Author's Name | Hidenori Sekiguchi |
| 4th Author's Affiliation | FUJITSU LABORATORIES LTD. Sensing and Control System Laboratory |
| 5th Author's Name | Akio Ito |
| 5th Author's Affiliation | FUJITSU LABORATORIES LTD. Sensing and Control System Laboratory |
| Date | 2001/6/20 |
| Paper # | MW2001-42,OPE2001-29 |
| Volume (vol) | vol.101 |
| Number (no) | 137 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |