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| Presentation | 2008-10-10 11:45 Analysis of Writer Pole Remanence of Tapered Main Pole Head Maki Maeda, Hiroki Kobayashi, Junzo Toda, Yuichi Sato, Shin Eguchi (Fujitsu Laboratories Ltd.)  MR2008-29 Link to ES Tech. Rep. Archives: MR2008-29 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | For a perpendicular writer, it is necessary to reduce the pole tip remanence as well as to improve the writing efficiency. To improve the writing efficiency for a narrow core width design, a tapered main pole geometry is proposed. We simulated the head remanence of the tapered main pole head with a micromagnetic model. To reduce the head pole tip remanence, a single magnetic domain structure forming a vortex state from the pole tip (ABS) to the tapered region is preferred. A tapered main pole structure with the trailing gap depth (TGD) below 30 nm and the tapered angle (TG) equal to about 30 degrees effectively improved the writing efficiency. This is achieved with a higher head field value of more than 1.3 times of the conventional structure. Moreover, the pole tip remanence is reduced to a value closer to the conventional structure. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Head remanence / micromagnetics / magnetic write head / Tapered Main Pole head / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, Oct. 2008. | |
| Paper # | ||
| Date of Issue | 2008-10-02 (MR) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | MR2008-29 Link to ES Tech. Rep. Archives: MR2008-29 |
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| Conference Information | |
| Committee | MRIS ITE-MMS |
| Conference Date | 2008-10-09 - 2008-10-10 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | AIT, Akita Research and Development Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Head, media and general |
| Paper Information | |
| Registration To | MRIS |
| Conference Code | 2008-10-MR-MMS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis of Writer Pole Remanence of Tapered Main Pole Head |
| Sub Title (in English) | |
| Keyword(1) | Head remanence |
| Keyword(2) | micromagnetics |
| Keyword(3) | magnetic write head |
| Keyword(4) | Tapered Main Pole head |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Maki Maeda |
| 1st Author's Affiliation | Fujitsu Laboratories Limited (Fujitsu Laboratories Ltd.) |
| 2nd Author's Name | Hiroki Kobayashi |
| 2nd Author's Affiliation | Fujitsu Laboratories Limited (Fujitsu Laboratories Ltd.) |
| 3rd Author's Name | Junzo Toda |
| 3rd Author's Affiliation | Fujitsu Laboratories Limited (Fujitsu Laboratories Ltd.) |
| 4th Author's Name | Yuichi Sato |
| 4th Author's Affiliation | Fujitsu Laboratories Limited (Fujitsu Laboratories Ltd.) |
| 5th Author's Name | Shin Eguchi |
| 5th Author's Affiliation | Fujitsu Laboratories Limited (Fujitsu Laboratories Ltd.) |
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| Speaker | Author-1 |
| Date Time | 2008-10-10 11:45:00 |
| Presentation Time | 40 minutes |
| Registration for | MRIS |
| Paper # | MR2008-29 |
| Volume (vol) | vol.108 |
| Number (no) | no.234 |
| Page | pp.61-66 |
| #Pages | 6 |
| Date of Issue | 2008-10-02 (MR) |
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