Laser-induced magnetization dynamics in a van der Waals ferromagnetic Cr2Ge2Te6 nanoflake
Laser-induced magnetization dynamics in a van der Waals ferromagnetic Cr2Ge2Te6 nanoflake
复制标题
范德华铁磁 Cr2Ge2Te6 纳米片中的激光诱导磁化动力学
DOI:
10.1063/5.0006080
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发表时间:
2020-06
影响因子:
4
通讯作者:
Zhang Jing
中科院分区:
文献类型:
--
作者:
Zhang Tongyao;Chen Yuansen;Li Yanxu;Guo Zhichao;Wang Zhi;Han Zheng;He Wei;Zhang Jing
Laser-induced magnetization dynamics is quantitatively investigated in a van der Waals ferromagnetic Cr2Ge2Te6 nanoflake by means of time-resolved Faraday rotation. Under ferromagnetic resonance conditions, the angular dependence of spin precession dynamics gives rise to a perpendicular magnetic anisotropy with an effective field of 125 ± 8 mT. We further determine the field dependence of the effective damping coefficient, which is dominated by the inhomogeneous broadening of magnetic anisotropy in the regime of a small magnetic field while it diminishes to an intrinsic value of 0.006 ± 0.002 at high fields.
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DOI:
10.1007/978-3-662-03299-2
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