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Paper Abstract and Keywords
Presentation 2017-12-08 10:50
Micromagnetic model analysis of MAMR recording head (2) -- Oscillation of STO vs. rise time of external field --
Ryo Itagaki, Yasushi Kanai (Niigata Inst. Tech.), Simon Greaves, Hiroaki Muraoka (Tohoku Univ.) MR2017-39
Abstract (in Japanese) (See Japanese page) 
(in English) A micromagnetic model analysis of spin-torque oscillators (STOs) was carried out. First, the conditions for stable oscillation were determined using a uniform, in-gap field applied to the STO in place of the field from a write head. It was found that the rise time (0-90%) of the in-gap field greatly affected the STO oscillation, i.e. a shorter rise time gave more stable STO oscillation. We also investigated STOs in the write head gap and found that the STO oscillation was dependent on the rise time of the in-gap field.
Keyword (in Japanese) (See Japanese page) 
(in English) Microwave-Assisted Magnetic Recording (MAMR) / Spin Torque Oscillator (STO) / Write Heads / Rise Time of Applied Field / Micromagnetic Simulations / / /  
Reference Info. IEICE Tech. Rep., vol. 117, Dec. 2017.
Paper #  
Date of Issue 2017-11-30 (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 MR2017-39

Conference Information
Committee MRIS ITE-MMS  
Conference Date 2017-12-07 - 2017-12-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Ehime Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Signal Processing, etc. 
Paper Information
Registration To MRIS 
Conference Code 2017-12-MR-MMS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Micromagnetic model analysis of MAMR recording head (2) 
Sub Title (in English) Oscillation of STO vs. rise time of external field 
Keyword(1) Microwave-Assisted Magnetic Recording (MAMR)  
Keyword(2) Spin Torque Oscillator (STO)  
Keyword(3) Write Heads  
Keyword(4) Rise Time of Applied Field  
Keyword(5) Micromagnetic Simulations  
Keyword(6)  
Keyword(7)  
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1st Author's Name Ryo Itagaki  
1st Author's Affiliation Niigata Institute of Technology (Niigata Inst. Tech.)
2nd Author's Name Yasushi Kanai  
2nd Author's Affiliation Niigata Institute of Technology (Niigata Inst. Tech.)
3rd Author's Name Simon Greaves  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Hiroaki Muraoka  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-2 
Date Time 2017-12-08 10:50:00 
Presentation Time 20 minutes 
Registration for MRIS 
Paper # MR2017-39 
Volume (vol) vol.117 
Number (no) no.338 
Page pp.81-86 
#Pages 6 
Date of Issue 2017-11-30 (MR) 

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