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Paper Abstract and Keywords
Presentation 2010-06-11 10:00
Demagnetization Factor of a Recording Layer in the Presence of a Head and SUL
Kinya Fudano (NEC Software Tohoku/Tohoku Univ.), Hiroaki Muraoka (Tohoku Univ.), Yoshihisa Nakamura (Iwate Prefectural Univ./Tohoku Univ.) MR2010-8
Abstract (in Japanese) (See Japanese page) 
(in English) Consideration of the demagnetizing field in a recording medium is important to determine the optimum conditions for the write field. The effect of the magnetic interaction between a write head and a medium has to be taken into account to obtain an accurate description of the recording process in perpendicular magnetic recording. In this study, a detailed analysis of the effect of the demagnetizing field on the recording process was performed using a finite-element method (FEM) computer simulation of heads and media. The simulator was combined with a Stoner-Wohlfarth magnetization reversal model, in which head-medium magnetic interactions were incorporated by calculating the head and medium magnetization together as a 'self-consistent' system, designated as "SMART". Using this simulator, the demagnetizing field in a recording layer located between a main pole and soft magnetic underlayer (SUL) was calculated for various combinations of heads and media. So the optimum condition for the write head and medium could be lead by calculating the demagnetization factor accurately with this simulator for the high-density perpendicular magnetic recording.
Keyword (in Japanese) (See Japanese page) 
(in English) perpendicular magnetic recording / FEM simulation / head-medium magnetic interaction / self-consistent calculation / magnetic recording simulator / demagnetizing field / /  
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 MR2010-8

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-MMS-MR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Demagnetization Factor of a Recording Layer in the Presence of a Head and SUL 
Sub Title (in English)  
Keyword(1) perpendicular magnetic recording  
Keyword(2) FEM simulation  
Keyword(3) head-medium magnetic interaction  
Keyword(4) self-consistent calculation  
Keyword(5) magnetic recording simulator  
Keyword(6) demagnetizing field  
Keyword(7)  
Keyword(8)  
1st Author's Name Kinya Fudano  
1st Author's Affiliation NEC Software Tohoku, Ltd./RIEC, Tohoku University (NEC Software Tohoku/Tohoku Univ.)
2nd Author's Name Hiroaki Muraoka  
2nd Author's Affiliation RIEC, Tohoku University (Tohoku Univ.)
3rd Author's Name Yoshihisa Nakamura  
3rd Author's Affiliation Iwate Prefectural University/RIEC, Tohoku University (Iwate Prefectural Univ./Tohoku Univ.)
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Speaker Author-1 
Date Time 2010-06-11 10:00:00 
Presentation Time 30 minutes 
Registration for MRIS 
Paper # MR2010-8 
Volume (vol) vol.110 
Number (no) no.68 
Page pp.53-59 
#Pages 7 
Date of Issue 2010-06-03 (MR) 

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