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Energy exchange dependent transient ferromagnetic like state of ultrafast magnetization dynamics

Gao, Shihan; Liu, Donglin; Zheng, Taotao; Ostler, Thomas; Chantrell, Roy; Xu, Chudong

Authors

Shihan Gao

Donglin Liu

Taotao Zheng

Thomas Ostler

Roy Chantrell

Chudong Xu



Abstract

The study of laser-induced ultrafast magnetization dynamics is crucial for the development of information recording technology. Due to the complex mechanism, there is still a lack of comprehensive understanding for ultrafast magnetization dynamics. As an essential stage of laser-induced ultrafast magnetization switching process, the transient ferromagnetic like state (TFLS), has attracted much attention. Different from other studies on TFLS through the difference of magnetization dynamics between rare-earth and transition-metal, our study mainly focuses on the influence of energy injection and relaxation on TFLS in the process of ultrafast magnetization dynamics. The influence of various parameters on the formation of energy exchange dependent TFLS is studied. The results of simulation well support our view. Understanding the mechanism behind the TFLS is of great significance to promote the application of laser-induced ultrafast magnetization switching.

Citation

Gao, S., Liu, D., Zheng, T., Ostler, T., Chantrell, R., & Xu, C. (2022). Energy exchange dependent transient ferromagnetic like state of ultrafast magnetization dynamics. New Journal of Physics, 24(10), Article 103013. https://doi.org/10.1088/1367-2630/ac95ba

Journal Article Type Article
Acceptance Date Sep 28, 2022
Online Publication Date Oct 13, 2022
Publication Date Oct 13, 2022
Deposit Date Oct 14, 2022
Publicly Available Date Oct 17, 2022
Journal New Journal of Physics
Print ISSN 1367-2630
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 24
Issue 10
Article Number 103013
DOI https://doi.org/10.1088/1367-2630/ac95ba
Keywords Optics; Ultrafast laser; Ultrafast magnetic recording
Public URL https://hull-repository.worktribe.com/output/4094941

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Copyright Statement
© 2022 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft.
Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.





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