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Energy exchange dependent transient ferromagnetic like state of ultrafast magnetization dynamics
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Energy exchange dependent transient ferromagnetic like state of ultrafast magnetization dynamics
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Journal Article
Energy exchange dependent transient ferromagnetic like state of ultrafast magnetization dynamics
2022
Overview
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.
Publisher
IOP Publishing
Subject
