Yang, Long, Yan, Yu, Chen, Yequan et al. (9 more authors) (2020) Large anisotropy of magnetic damping in ultrathin epitaxial Fe/GaAs (001) film. Journal of Physics D: Applied Physics. 115004. ISSN 0022-3727
Abstract
The magnetization dynamics of ultrathin epitaxial Fe films on GaAs (0 0 1) with different thicknesses have been investigated by all-optical time-resolved magneto-optical Kerr effect. For the Fe film with thickness of 8 monolayers, the magnetic damping constant along orientation increases by 66% compared with that along orientation, showing the uniaxial anisotropy of magnetic damping. By the measurement of angular dependent time-resolved magneto-optical Kerr effect, the uniaxial magnetic damping is clearly correlated to the in-plane uniaxial anisotropy field of the Fe film. In addition, the anisotropy of the damping constants is found to disappear for the Fe films thicker than 15 monolayers, suggesting that the anisotropic damping originates from the interfacial effect between Fe and GaAs.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Copyright 2020 IOP Publishing. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. |
Keywords: | Anisotropic damping constant,Magnetic anisotropy field,TR-MOKE,Ultrathin film |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Electronic Engineering (York) The University of York > Faculty of Sciences (York) > Physics (York) The University of York > Faculty of Sciences (York) > Computer Science (York) |
Depositing User: | Pure (York) |
Date Deposited: | 15 Jun 2020 16:10 |
Last Modified: | 26 Jan 2025 00:16 |
Published Version: | https://doi.org/10.1088/1361-6463/ab61cd |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1088/1361-6463/ab61cd |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:161846 |
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