Energy exchange dependent transient ferromagnetic like state of ultrafast magnetization dynamics

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GAO, Shihan, LIU, Donglin, ZHENG, Taotao, OSTLER, Thomas, CHANTRELL, Roy and XU, Chudong (2022). Energy exchange dependent transient ferromagnetic like state of ultrafast magnetization dynamics. New Journal of Physics, 24 (10).

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Official URL: https://iopscience.iop.org/article/10.1088/1367-26...
Open Access URL: https://iopscience.iop.org/article/10.1088/1367-26... (Published version)
Link to published version:: https://doi.org/10.1088/1367-2630/ac95ba
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    Abstract

    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.

    Item Type: Article
    Additional Information: ** From IOP Publishing via Jisc Publications Router ** Licence for this article: https://creativecommons.org/licenses/by/4.0/ **Journal IDs: eissn 1367-2630 **Article IDs: publisher-id: njpac95ba; manuscript: ac95ba; other: njp-115082.r1 **History: open-access 13-10-2022; published_online 13-10-2022; published 01-10-2022; accepted 28-09-2022; oa-requested 20-09-2022; rev-recd 15-09-2022; submitted 04-06-2022
    Uncontrolled Keywords: Paper, optics, ultrafast laser, ultrafast magnetic recording
    Identification Number: https://doi.org/10.1088/1367-2630/ac95ba
    SWORD Depositor: Colin Knott
    Depositing User: Colin Knott
    Date Deposited: 14 Oct 2022 12:17
    Last Modified: 17 Oct 2022 16:10
    URI: https://shura.shu.ac.uk/id/eprint/30864

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