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Paper Abstract and Keywords
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
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

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  
Keyword(6)  
Keyword(7)  
Keyword(8)  
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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