Liu, Bo, Yang, Long, Ruan, Xuezhong et al. (5 more authors) (2019) Femtosecond laser-heating effect on the magnetization dynamics in perpendicularly magnetized Ta/CoFeB/MgO film. New Journal of Physics. 053032. ISSN 1367-2630
Abstract
We have studied the effect of ultrafast laser-heating on the magnetization dynamics of perpendicularly magnetized CoFeB film by means of the time-resolved magneto-optical Kerr rotation effect. The effective perpendicular magnetic anisotropy field HK is significantly decreased with enhancing the pump laser-fluence in a moderate range of 5-12 mJ cm-2. The Gilbert damping, however, is found to be independent of the pump fluence. These findings provide a new method of separately manipulating the Gilbert damping and perpendicular magnetic anisotropy.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 The Author(s). |
Keywords: | Gilbert damping,laser-heating,perpendicular magnetic anisotropy,time-resolved MOKE |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Computer Science (York) The University of York > Faculty of Sciences (York) > Electronic Engineering (York) |
Depositing User: | Pure (York) |
Date Deposited: | 12 Jun 2020 14:20 |
Last Modified: | 16 Oct 2024 16:40 |
Published Version: | https://doi.org/10.1088/1367-2630/ab1fac |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1088/1367-2630/ab1fac |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:161855 |