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| Presentation | 2014-07-17 13:50 All - optical magnetization switching induced by ultrashort heat pulse: relation with GdFeCo sub - lattice magnetization Hiroki Yoshikawa, Arata Tsukamoto, Akiyoshi Itoh (Nihon Univ.)  MR2014-10 Link to ES Tech. Rep. Archives: MR2014-10 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Femtosecond laser pulse excitation of multi-sub-lattice rare-earth (RE) transition-metal (TM) ferrimagnets opens the way to trigger magnetization precessional motion and moreover all-optical magnetization switching (AOS). This AOS phenomena originated from sub-lattice nature is fundamentally different from conventional magnetic field driven switching mechanism. In this study, we show that the AOS efficiently works even near compensation composition ratio Ccomp or compensation temperature Tcomp that makes hardness to magnetic field driven net-magnetization (Mnet) reversal. Under the various conditions of M net, all optically created domain sizes were almost determined by only the condition of laser excitation. Furthermore, we suggested that the switching domain area can be estimated by a fluence threshold Wft. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | All-optical magnetization switching / Femtosecond pulse laser / Ferrimagnets / Thin film / Compensation point / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, July 2014. | |
| Paper # | ||
| Date of Issue | 2014-07-10 (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 | MR2014-10 Link to ES Tech. Rep. Archives: MR2014-10 |
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| Conference Information | |
| Committee | MRIS ITE-MMS |
| Conference Date | 2014-07-17 - 2014-07-17 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Solid State Memory, Media, etc. |
| Paper Information | |
| Registration To | MRIS |
| Conference Code | 2014-07-MR-MMS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | All - optical magnetization switching induced by ultrashort heat pulse: relation with GdFeCo sub - lattice magnetization |
| Sub Title (in English) | |
| Keyword(1) | All-optical magnetization switching |
| Keyword(2) | Femtosecond pulse laser |
| Keyword(3) | Ferrimagnets |
| Keyword(4) | Thin film |
| Keyword(5) | Compensation point |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Hiroki Yoshikawa |
| 1st Author's Affiliation | Nihon University (Nihon Univ.) |
| 2nd Author's Name | Arata Tsukamoto |
| 2nd Author's Affiliation | Nihon University (Nihon Univ.) |
| 3rd Author's Name | Akiyoshi Itoh |
| 3rd Author's Affiliation | Nihon University (Nihon Univ.) |
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| Speaker | Author-1 |
| Date Time | 2014-07-17 13:50:00 |
| Presentation Time | 25 minutes |
| Registration for | MRIS |
| Paper # | MR2014-10 |
| Volume (vol) | vol.114 |
| Number (no) | no.140 |
| Page | pp.11-15 |
| #Pages | 5 |
| Date of Issue | 2014-07-10 (MR) |
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