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Paper Abstract and Keywords
Presentation 2012-01-20 11:30
Influence of Pt spacer layer on perpendicular exchange bias in Co/α-Cr2O3(0001) thin film
Yuichiro Takechi, Hiroto Oikawa, Hayato Noutomi, Toshiaki Fujita, Yu Shiratsuchi, Ryoichi Nakatani (Osaka Univ.) MR2011-40
Abstract (in Japanese) (See Japanese page) 
(in English) We have reported high perpendicular exchange anisotropy of about 0.3 erg/cm2 using Pt/Co/α-Cr2O3(0001) thin films fabricated by means of DC magnetron sputtering method. We have also reported a unique temperature dependence that the perpendicular exchange bias (PEB) suddenly appeared. The sudden appearance of PEB can be explained by the competition of an exchange coupling energy at Co/α-Cr2O3 interface and a magnetic anisotropy of α-Cr2O3 layer. In this study, we investigate the control of the interface exchange coupling energy inserting Pt spacer layer at Co/α-Cr2O3 interface and the resultant change in the onset temperature of PEB. The films showed that the decrease of the unidirectional anisotropy energy JK and the increase of the onset temperature of PEB. These results qualitatively agree with the Meiklejohn and Bean’s exchange anisotropy model.
Keyword (in Japanese) (See Japanese page) 
(in English) α-Cr2O3 thin film / Perpendicular exchange bias / Exchange bias / Perpendicular magnetic anisotropy / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, Jan. 2012.
Paper #  
Date of Issue 2012-01-12 (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 MR2011-40

Conference Information
Committee ITE-MMS ITE-CE MRIS  
Conference Date 2012-01-19 - 2012-01-20 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MRIS 
Conference Code 2012-01-MMS-CE-MR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Influence of Pt spacer layer on perpendicular exchange bias in Co/α-Cr2O3(0001) thin film 
Sub Title (in English)  
Keyword(1) α-Cr2O3 thin film  
Keyword(2) Perpendicular exchange bias  
Keyword(3) Exchange bias  
Keyword(4) Perpendicular magnetic anisotropy  
Keyword(5)  
Keyword(6)  
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Keyword(8)  
1st Author's Name Yuichiro Takechi  
1st Author's Affiliation Graduate School of Engineering, Osaka University (Osaka Univ.)
2nd Author's Name Hiroto Oikawa  
2nd Author's Affiliation Graduate School of Engineering, Osaka University (Osaka Univ.)
3rd Author's Name Hayato Noutomi  
3rd Author's Affiliation Graduate School of Engineering, Osaka University (Osaka Univ.)
4th Author's Name Toshiaki Fujita  
4th Author's Affiliation Graduate School of Engineering, Osaka University (Osaka Univ.)
5th Author's Name Yu Shiratsuchi  
5th Author's Affiliation Graduate School of Engineering, Osaka University (Osaka Univ.)
6th Author's Name Ryoichi Nakatani  
6th Author's Affiliation Graduate School of Engineering, Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2012-01-20 11:30:00 
Presentation Time 30 minutes 
Registration for MRIS 
Paper # MR2011-40 
Volume (vol) vol.111 
Number (no) no.387 
Page pp.63-66 
#Pages 4 
Date of Issue 2012-01-12 (MR) 

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