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Paper Abstract and Keywords
Presentation 2016-12-09 11:20
Influence of Underlayer Material on the Surface and the Crystallographic Qualities of L10-FePt Alloy Thin Film
Tomoki Shimizu, Masahiro Nakamura, Ryoma Ochiai (Chuo Univ.), Mitsuru Ohtake (Kogakuin Univ./Chuo Univ.), Masaaki Futamoto (Chuo Univ.), Fumiyoshi Kirino (Tokyo Univ. Arts), Nobuyuki Inaba (Yamagata Univ.) MR2016-40
Abstract (in Japanese) (See Japanese page) 
(in English) In order to apply FePt alloy thin film with L10 structure to magnetic recording media, etc., it is required to control the film surface flatness. However, the surface of L10-ordered FePt film is generally rough because of clustering of deposited atoms on the substrate surface at high-deposition temperatures. As the surface morphology of epitaxial film is influenced by difference in the surface energy of substrate and film materials, it is useful to investigate the effect of surface energy difference on the surface flatness of L10-ordered FePt film. In the present study, FePt films of 10 nm thickness are deposited on MgO, VC, and, VN underlayers of 2 nm thickness which are prepared on SrTiO3(001) single-crystal substrates at 600 °C. The influence of surface energy of underlayer on the structure of FePt film is investigated. The results indicate that an employment of underlayer material of VN or VC which has a surface energy higher than that of MgO is effective in the preparation of L10-ordered FePt film with flatter surface.
Keyword (in Japanese) (See Japanese page) 
(in English) FePt / L10 structure / surface flatness / epitaxial growth / underlayer / surface energy / single-crystal substarate /  
Reference Info. IEICE Tech. Rep., vol. 116, Dec. 2016.
Paper #  
Date of Issue 2016-12-01 (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 MR2016-40

Conference Information
Committee MRIS ITE-MMS  
Conference Date 2016-12-08 - 2016-12-09 
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 2016-12-MR-MMS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Influence of Underlayer Material on the Surface and the Crystallographic Qualities of L10-FePt Alloy Thin Film 
Sub Title (in English)  
Keyword(1) FePt  
Keyword(2) L10 structure  
Keyword(3) surface flatness  
Keyword(4) epitaxial growth  
Keyword(5) underlayer  
Keyword(6) surface energy  
Keyword(7) single-crystal substarate  
Keyword(8)  
1st Author's Name Tomoki Shimizu  
1st Author's Affiliation Chuo University (Chuo Univ.)
2nd Author's Name Masahiro Nakamura  
2nd Author's Affiliation Chuo University (Chuo Univ.)
3rd Author's Name Ryoma Ochiai  
3rd Author's Affiliation Chuo University (Chuo Univ.)
4th Author's Name Mitsuru Ohtake  
4th Author's Affiliation Kogakuin University/Chuo University (Kogakuin Univ./Chuo Univ.)
5th Author's Name Masaaki Futamoto  
5th Author's Affiliation Chuo University (Chuo Univ.)
6th Author's Name Fumiyoshi Kirino  
6th Author's Affiliation Tokyo University of the Arts (Tokyo Univ. Arts)
7th Author's Name Nobuyuki Inaba  
7th Author's Affiliation Yamagata University (Yamagata Univ.)
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Speaker Author-1 
Date Time 2016-12-09 11:20:00 
Presentation Time 25 minutes 
Registration for MRIS 
Paper # MR2016-40 
Volume (vol) vol.116 
Number (no) no.348 
Page pp.63-67 
#Pages 5 
Date of Issue 2016-12-01 (MR) 

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