Paper Abstract and Keywords |
Presentation |
2010-07-09 11:30
Study on Spin Torque Oscillator using Generating Layer with Perpendicular Magnetic Layer Tatsuaki Takahashi, Yuuma Ishikawa, Kazuetsu Yoshida (Kogakuin Univ.), Yasushi Kanai (Niigata Inst. of Tech.) MR2010-21 Link to ES Tech. Rep. Archives: MR2010-21 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Microwave-assisted magnetic recording (MAMR) has recently emerged as a candidate to solve the trilemma in magnetic recording. In MAMR a device that can generate higher frequency magnetic field than 20 GHz is necessary. A spin torque oscillator (STO) that comprises three magnetic layers, a reference layer, a field generating layer and a perpendicular layer, was proposed by J-G. Zhu. Also, the authors proposed an STO that comprised two layers, eliminating a perpendicular layer, which utilizes a magnetic materials with large negative magnetic anisotropy as a field generating layer. They showed that the STO possesses several excellent oscillating properties. However, the STOs above mentioned have a problem that they require an extraordinarily large positive or negative anisotropy. We have investigated the possibilities that well known magnetic materials with ordinal magnitude of magnetic anisotropy can be utilized as a field generating layer in place of large anisotropy materials. In this report the oscillating behaviors of the STO with perpendicular anisotropy are described, comparing with the STO with negative anisotropy. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
microwave-assisted magnetic recording / spin-torque oscillator / micromagnetic simulation / perpendicular magnetic anisotropy / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, July 2010. |
Paper # |
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Date of Issue |
2010-07-01 (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 |
MR2010-21 Link to ES Tech. Rep. Archives: MR2010-21 |
Conference Information |
Committee |
ITE-MMS MRIS |
Conference Date |
2010-07-08 - 2010-07-09 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Ibaraki Univ. |
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Paper Information |
Registration To |
MRIS |
Conference Code |
2010-07-MMS-MR |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Study on Spin Torque Oscillator using Generating Layer with Perpendicular Magnetic Layer |
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Keyword(1) |
microwave-assisted magnetic recording |
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spin-torque oscillator |
Keyword(3) |
micromagnetic simulation |
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perpendicular magnetic anisotropy |
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1st Author's Name |
Tatsuaki Takahashi |
1st Author's Affiliation |
Kogakuin University (Kogakuin Univ.) |
2nd Author's Name |
Yuuma Ishikawa |
2nd Author's Affiliation |
Kogakuin University (Kogakuin Univ.) |
3rd Author's Name |
Kazuetsu Yoshida |
3rd Author's Affiliation |
Kogakuin University (Kogakuin Univ.) |
4th Author's Name |
Yasushi Kanai |
4th Author's Affiliation |
Niigata Institute of Technology (Niigata Inst. of Tech.) |
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Speaker |
Author-1 |
Date Time |
2010-07-09 11:30:00 |
Presentation Time |
30 minutes |
Registration for |
MRIS |
Paper # |
MR2010-21 |
Volume (vol) |
vol.110 |
Number (no) |
no.112 |
Page |
pp.61-65 |
#Pages |
5 |
Date of Issue |
2010-07-01 (MR) |