Lu, Xianyang, Zou, Xiao, Hinzke, Denize et al. (9 more authors) (2018) Roles of heating and helicity in ultrafast all-optical magnetization switching in TbFeCo. Applied Physics Letters. 032405. 032405-1 to 032405-5. ISSN 0003-6951
Abstract
Using the time-resolved magneto-optical Kerr effect method, helicity-dependent all-optical magnetization switching (HD-AOS) is observed in ferrimagnetic TbFeCo films. Our results reveal the individual roles of the thermal and nonthermal effects after a single circularly polarized laser pulse. The evolution of this ultrafast switching occurs over different time scales, and a defined magnetization reversal time of 460 fs is shown—the fastest ever observed. Micromagnetic simulations based on a single macro-spin model, taking into account both heating and the inverse Faraday effect, are performed which reproduce HD-AOS demonstrating a linear path for magnetization reversal.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 AIP Publishing. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. |
Keywords: | all-optical,TbFeCo,magnetisation switching |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) The University of York > Faculty of Sciences (York) > Electronic Engineering (York) |
Depositing User: | Pure (York) |
Date Deposited: | 01 Oct 2018 14:00 |
Last Modified: | 13 Mar 2025 05:24 |
Published Version: | https://doi.org/10.1063/1.5036720 |
Status: | Published online |
Refereed: | Yes |
Identification Number: | 10.1063/1.5036720 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:136399 |