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| Presentation | 2016-06-10 11:20 Micromagnetic simulation of STO for microwave-assisted magnetic recording (4) -- Optimum injected current density of integrated STO vs. write head structure and head material characteristics -- Yuuki Tabuse, Yasushi Kanai (NIIT), Kazuetsu Yoshida (Kogakuin Univ.), Simon Greaves, Hiroaki Muraoka (Tohoku Univ.)  MR2016-12 Link to ES Tech. Rep. Archives: MR2016-12 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Micromagnetic analysis was carried out for the spin-torque oscillator (STO) used for microwave-assisted magnetic recording (MAMR). It was difficult to reduce the optimum injected current density (Jopt) by optimizing the material characteristics and the write head structure significantly affected Jopt. A tilted main pole – trailing shield gap with a tilted STO gave a smaller Jopt than a write head with the STO perpendicular to the medium. We also investigated various STO structures (cylinder and cuboid with and without a cut) and found that the cylinder had smaller Jopt and the models with cuts had unstable oscillations. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Microwave-assisted magnetic recording / spin-torque oscillator / write head / spin injected current / micromagnetic simulation / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, June 2016. | |
| Paper # | ||
| Date of Issue | 2016-06-02 (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 | MR2016-12 Link to ES Tech. Rep. Archives: MR2016-12 |
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| Conference Information | |
| Committee | MRIS ITE-MMS |
| Conference Date | 2016-06-09 - 2016-06-10 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Recording Systems, etc. |
| Paper Information | |
| Registration To | MRIS |
| Conference Code | 2016-06-MR-MMS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Micromagnetic simulation of STO for microwave-assisted magnetic recording (4) |
| Sub Title (in English) | Optimum injected current density of integrated STO vs. write head structure and head material characteristics |
| Keyword(1) | Microwave-assisted magnetic recording |
| Keyword(2) | spin-torque oscillator |
| Keyword(3) | write head |
| Keyword(4) | spin injected current |
| Keyword(5) | micromagnetic simulation |
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| 1st Author's Name | Yuuki Tabuse |
| 1st Author's Affiliation | Niigata Institute of Technology (NIIT) |
| 2nd Author's Name | Yasushi Kanai |
| 2nd Author's Affiliation | Niigata Institute of Technology (NIIT) |
| 3rd Author's Name | Kazuetsu Yoshida |
| 3rd Author's Affiliation | Kogakuin University (Kogakuin Univ.) |
| 4th Author's Name | Simon Greaves |
| 4th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 5th Author's Name | Hiroaki Muraoka |
| 5th Author's Affiliation | Tohoku University (Tohoku Univ.) |
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| Speaker | Author-2 |
| Date Time | 2016-06-10 11:20:00 |
| Presentation Time | 25 minutes |
| Registration for | MRIS |
| Paper # | MR2016-12 |
| Volume (vol) | vol.116 |
| Number (no) | no.83 |
| Page | pp.73-78 |
| #Pages | 6 |
| Date of Issue | 2016-06-02 (MR) |
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