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| Presentation | 2013-11-15 13:25 Characterization and analysis of deposition behavior of ultra-high density ferromagnetic nanodot arrays fabricated by electrochemical processes Siggi Wodarz, Yuta Maniwa, Hiroki Hagiwara, Tomohiro Otani, Daiki Nishiie (Waseda Univ.), Giovanni Zangari (UVA), Takayuki Homma (Waseda Univ.)  MR2013-20 Link to ES Tech. Rep. Archives: MR2013-20 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We fabricated hcp-Co80Pt20 and L10-FePt thin films and nanodot arrays onto hcp-Ru (002) / Si substrate by electrodeposition and lithography processes. The effect of applied potential and diameter of the nanodot on deposition behavior of Co-Pt was analyzed in order to control the deposition of Co-Pt. By using electron beam lithography, nanodot patterns with 10 nm diameter and 18 nm pitch were uniformly fabricated. It was suggested that the particle size of Co-Pt could be controlled by the applied potential, and in the case of relatively positive applied potential of - 400 mV and – 500 mV vs Ag / AgCl, progressive nucleation preferentially occurred to increase the size of each Co-Pt particle. The phase transformation from fcc-Fe-Pt to L10 Fe-Pt was observed by annealing at 650 oC, and Fe-Pt films with perpendicular coercivity of 9.0 kOe and 9.8 kOe with a thickness of 10 nm and 25 nm were obtained. In addition, Fe-Pt nanodot arrays having a pitch and a diameter of 100 nm and 35 nm were successfully fabricated by UV-nanoimprint lithography. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | BPM / Electrodeposition / Co-Pt / Fe-Pt / Electron Beam Lithography / UV-Nanoimprint Lithography / / | |
| Reference Info. | IEICE Tech. Rep., vol. 113, Nov. 2013. | |
| Paper # | ||
| Date of Issue | 2013-11-08 (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 | MR2013-20 Link to ES Tech. Rep. Archives: MR2013-20 |
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| Conference Information | |
| Committee | MRIS ITE-MMS |
| Conference Date | 2013-11-15 - 2013-11-15 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Waseda Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Hard disk drive technology, etc. |
| Paper Information | |
| Registration To | MRIS |
| Conference Code | 2013-11-MR-MMS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Characterization and analysis of deposition behavior of ultra-high density ferromagnetic nanodot arrays fabricated by electrochemical processes |
| Sub Title (in English) | |
| Keyword(1) | BPM |
| Keyword(2) | Electrodeposition |
| Keyword(3) | Co-Pt |
| Keyword(4) | Fe-Pt |
| Keyword(5) | Electron Beam Lithography |
| Keyword(6) | UV-Nanoimprint Lithography |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Siggi Wodarz |
| 1st Author's Affiliation | Waseda University (Waseda Univ.) |
| 2nd Author's Name | Yuta Maniwa |
| 2nd Author's Affiliation | Waseda University (Waseda Univ.) |
| 3rd Author's Name | Hiroki Hagiwara |
| 3rd Author's Affiliation | Waseda University (Waseda Univ.) |
| 4th Author's Name | Tomohiro Otani |
| 4th Author's Affiliation | Waseda University (Waseda Univ.) |
| 5th Author's Name | Daiki Nishiie |
| 5th Author's Affiliation | Waseda University (Waseda Univ.) |
| 6th Author's Name | Giovanni Zangari |
| 6th Author's Affiliation | University of Virginia (UVA) |
| 7th Author's Name | Takayuki Homma |
| 7th Author's Affiliation | Waseda University (Waseda Univ.) |
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| Speaker | Author-1 |
| Date Time | 2013-11-15 13:25:00 |
| Presentation Time | 25 minutes |
| Registration for | MRIS |
| Paper # | MR2013-20 |
| Volume (vol) | vol.113 |
| Number (no) | no.297 |
| Page | pp.7-10 |
| #Pages | 4 |
| Date of Issue | 2013-11-08 (MR) |
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