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| Presentation | 2021-10-08 15:35 Voltage-induced coercivity change in Pt/Co/CoO/amorphous TiOx structure Tomohiro Nozaki, Shingo Tamaru, Makoto Konoto, Takayuki Nozaki, Hitoshi Kubota, Akio Fukushima, Shinji Yuasa (AIST)  MRIS2021-9 Link to ES Tech. Rep. Archives: MRIS2021-9 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Voltage controlled magnetic anisotropy (VCMA) effect has been attracted attention as a low power consumption spin manipulation technique, applicable to magnetoresistive random access memory (MRAM). For the research of the VCMA effect, we focused on fcc-Co (111)-based system as an alternative to bcc-Fe (001)-based systems. In this study, we investigated the voltage-induced coercivity change of the Pt/Co/amorphous TiOx structure, where we use an amorphous TiOx as a dielectric layer. About an order of magnitude larger voltage-induced coercivity change than the past reports was obtained when Co film thickness is relatively thick. We also demonstrated that the coercivity can be reduced while maintaining the voltage-induced coercivity change.by inserting Ir or Ru into Pt/Co interface. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | perpendicular magnetic anisotropy (PMA) / voltage controlled magnetic anisotropy (VCMA) / fcc-Co(111) / molecular beam epitaxy (MBE) / sputtering / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 193, MRIS2021-9, pp. 13-16, Oct. 2021. | |
| Paper # | MRIS2021-9 | |
| Date of Issue | 2021-10-01 (MRIS) | |
| ISSN | 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 | MRIS2021-9 Link to ES Tech. Rep. Archives: MRIS2021-9 |
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| Conference Information | |
| Committee | MRIS ITE-MMS |
| Conference Date | 2021-10-08 - 2021-10-08 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Recording Head, Spintronics, Solid State Memory, Media, etc. |
| Paper Information | |
| Registration To | MRIS |
| Conference Code | 2021-10-MRIS-MMS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Voltage-induced coercivity change in Pt/Co/CoO/amorphous TiOx structure |
| Sub Title (in English) | |
| Keyword(1) | perpendicular magnetic anisotropy (PMA) |
| Keyword(2) | voltage controlled magnetic anisotropy (VCMA) |
| Keyword(3) | fcc-Co(111) |
| Keyword(4) | molecular beam epitaxy (MBE) |
| Keyword(5) | sputtering |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Tomohiro Nozaki |
| 1st Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
| 2nd Author's Name | Shingo Tamaru |
| 2nd Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
| 3rd Author's Name | Makoto Konoto |
| 3rd Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
| 4th Author's Name | Takayuki Nozaki |
| 4th Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
| 5th Author's Name | Hitoshi Kubota |
| 5th Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
| 6th Author's Name | Akio Fukushima |
| 6th Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
| 7th Author's Name | Shinji Yuasa |
| 7th Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
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| Speaker | Author-1 |
| Date Time | 2021-10-08 15:35:00 |
| Presentation Time | 25 minutes |
| Registration for | MRIS |
| Paper # | MRIS2021-9 |
| Volume (vol) | vol.121 |
| Number (no) | no.193 |
| Page | pp.13-16 |
| #Pages | 4 |
| Date of Issue | 2021-10-01 (MRIS) |
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