Paper Abstract and Keywords |
Presentation |
2016-06-09 13:25
Compositional dependence of Cr100-xTix texture-inducing layer underlying (002) textured bcc-Cr alloy seed layer for FePt-C based heat-assisted magnetic recording media Seong-Jae Jeon, Shintaro Hinata, Shin Saito (Tohoku Univ.) MR2016-2 Link to ES Tech. Rep. Archives: MR2016-2 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Cr100-xTix amorphous texture-inducing layers (TIL) were investigated to realize highly (002) oriented L10 FePt-C granular films through hetero-epitaxial growth on the (002) textured bcc-Cr80Mn20 seed layer (bcc-SL). As-deposited TILs showed the amorphous phase in Ti content of 30 ≤ x (at%) ≤ 75. Particularly, films with 40 ≤ x ≤ 60 kept the amorphous phase against the heat treatment over 600 oC. It was found that preference of the crystallographic texture for bcc-SLs is directly affected by the structural phase of TILs. (002) crystallographic texture was realized in bcc-SLs deposited on the amorphous TILs (40 ≤ x ≤ 70), whereas (110) texture was formed in bcc-SLs overlying on crystalline TILs (x < 30 and x >70). Correlation between the angular distribution of (002) crystal orientation of bcc-SL evaluated by full width at half maximum of (002) diffraction (FWHM) and a grain diameter of bcc-SL indicated that while the development of the lateral growth for bcc-SL grain reduces FWHM, crystallization of amorphous TILs hinders FWHM. L10 FePt-C granular films were fabricated under the substrate heating process over 600 oC with having different FWHM of bcc-SL. Hysteresis loops showed that squareness (Mr/Ms) of the films increased from 0.87 to 0.95 when FWHM of bcc-SL decreased from 13.7 o to 3.8 o. It is suggested that the reduction of (002) FWHM affects to the overlying MgO film as well as FePt-C granular film by means of the hetero-epitaxial growth. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Amorphous Cr-Ti texture inducing layer / bcc-Cr alloy seed layer / Lateral grain growth / Hetero-epitaxial growth / L10 FePt-C granular film / Angular distribution of c-axis / / |
Reference Info. |
IEICE Tech. Rep., vol. 116, June 2016. |
Paper # |
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Date of Issue |
2016-06-02 (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 |
MR2016-2 Link to ES Tech. Rep. Archives: MR2016-2 |
Conference Information |
Committee |
MRIS ITE-MMS |
Conference Date |
2016-06-09 - 2016-06-10 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tohoku Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Recording Systems, etc. |
Paper Information |
Registration To |
MRIS |
Conference Code |
2016-06-MR-MMS |
Language |
English |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Compositional dependence of Cr100-xTix texture-inducing layer underlying (002) textured bcc-Cr alloy seed layer for FePt-C based heat-assisted magnetic recording media |
Sub Title (in English) |
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Keyword(1) |
Amorphous Cr-Ti texture inducing layer |
Keyword(2) |
bcc-Cr alloy seed layer |
Keyword(3) |
Lateral grain growth |
Keyword(4) |
Hetero-epitaxial growth |
Keyword(5) |
L10 FePt-C granular film |
Keyword(6) |
Angular distribution of c-axis |
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Keyword(8) |
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1st Author's Name |
Seong-Jae Jeon |
1st Author's Affiliation |
Tohoku University (Tohoku Univ.) |
2nd Author's Name |
Shintaro Hinata |
2nd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
3rd Author's Name |
Shin Saito |
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Tohoku University (Tohoku Univ.) |
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Speaker |
Author-1 |
Date Time |
2016-06-09 13:25:00 |
Presentation Time |
25 minutes |
Registration for |
MRIS |
Paper # |
MR2016-2 |
Volume (vol) |
vol.116 |
Number (no) |
no.83 |
Page |
pp.5-9 |
#Pages |
5 |
Date of Issue |
2016-06-02 (MR) |