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Paper Abstract and Keywords
Presentation 2010-06-10 14:00
MR ratio and RA design of CPP-MR film for over 2Tb/in2 read sensors
Masayuki Takagishi, Kenichiro Yamada, Hitoshi Iwasaki, Hiromi Nu Fuke, Susumu Hashimoto (Toshiba Corp) MR2010-2
Abstract (in Japanese) (See Japanese page) 
(in English) We estimated the current perpendicular to plane (CPP)-MR performance target required for HDD with areal density from 2Tb/in2 to 5Tb/in2, considering spin transfer torque (STT) and thermal magnetic noise. It is found that the noise due to STT drastically affects the MR performance target for low RA film. Read elements with higher RA (around 0.1-0.3Ω・μm2) are preferable to control STT. In addition, thermal magnetic noise remained smaller than media magnetic noise for 2Tb/in2 while it becomes comparable to media magnetic noise for 5Tb/in2, suggesting the necessity of a new method to control thermal magnetic noise.
Keyword (in Japanese) (See Japanese page) 
(in English) hard disk drive / read head / CPP-GMR / CPP-TMR / spin transfer torque / magnetic noise / thermal noise /  
Reference Info. IEICE Tech. Rep., vol. 110, June 2010.
Paper #  
Date of Issue 2010-06-03 (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 MR2010-2

Conference Information
Committee MRIS ITE-MMS  
Conference Date 2010-06-10 - 2010-06-11 
Place (in Japanese) (See Japanese page) 
Place (in English) RIEC Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MRIS 
Conference Code 2010-06-MR-MMS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) MR ratio and RA design of CPP-MR film for over 2Tb/in2 read sensors 
Sub Title (in English)  
Keyword(1) hard disk drive  
Keyword(2) read head  
Keyword(3) CPP-GMR  
Keyword(4) CPP-TMR  
Keyword(5) spin transfer torque  
Keyword(6) magnetic noise  
Keyword(7) thermal noise  
Keyword(8)  
1st Author's Name Masayuki Takagishi  
1st Author's Affiliation Toshiba Corporation. (Toshiba Corp)
2nd Author's Name Kenichiro Yamada  
2nd Author's Affiliation Toshiba Corporation. (Toshiba Corp)
3rd Author's Name Hitoshi Iwasaki  
3rd Author's Affiliation Toshiba Corporation. (Toshiba Corp)
4th Author's Name Hiromi Nu Fuke  
4th Author's Affiliation Toshiba Corporation. (Toshiba Corp)
5th Author's Name Susumu Hashimoto  
5th Author's Affiliation Toshiba Corporation. (Toshiba Corp)
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Speaker Author-1 
Date Time 2010-06-10 14:00:00 
Presentation Time 30 minutes 
Registration for MRIS 
Paper # MR2010-2 
Volume (vol) vol.110 
Number (no) no.68 
Page pp.13-19 
#Pages 7 
Date of Issue 2010-06-03 (MR) 

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