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Sub-THz High Spin Precession Frequency in van der Waals Ferromagnet Fe3GaTe2

文献类型：期刊论文

作者Zhang, Jiali5; Wang, Zhou1,2; Li, Ziyang5; Li, Tao1; Liu, Shuang5; Zhang, Jingying5; Zhang, Rong-Jun5; Jin, Qingyuan3; Shi, Zhong4; Liu, Yaowen4
刊名NANO LETTERS
出版日期2024-09-23
卷号24
关键词two-dimensional magneticmaterial time-resolved magneto-opticalKerr effect magnetization precession interlayerexchange coupling Gilbert damping factor
ISSN号1530-6984
DOI10.1021/acs.nanolett.4c03291
通讯作者Sheng, Zhigao(zhigaosheng@hmfl.ac.cn) ; Zhang, Zongzhi(zzzhang@fudan.edu.cn)
英文摘要The 2D magnet Fe3GaTe2 has received considerable attention for its high Curie temperature (T C), robust intrinsic ferromagnetism, and significant perpendicular magnetic anisotropy (PMA). In this study, the dynamic magnetic properties of Fe3GaTe2 are systematically investigated using an all-optical pump-probe technique. We find that the spin precession frequency (f) is as high as 351.2 GHz at T = 10 K under a field of H = 70 kOe. However, it decreases to 242.8 GHz at 300 K, mainly due to the reduced effective PMA field (H-keff). The Gilbert damping factor (alpha) is modest, which increases from 0.039 (10 K) to 0.075 (300 K) owing to the enhanced scattering rate. Interestingly, when Fe3GaTe2 is coupled with 2 nm of Co, the H-keff, f, and alpha just decrease slightly, highlighting the dominant influence of Fe3GaTe2 . These findings substantially deepen our understanding of Fe3GaTe2 , promoting the development of spintronic devices based on advanced 2D magnetic materials.
WOS关键词INTRINSIC FERROMAGNETISM ; ANISOTROPY
资助项目National Key R&D Program of China[2021YFA1600200] ; National Natural Science Foundation of China[12374104] ; National Natural Science Foundation of China[52171230] ; National Natural Science Foundation of China[12074072] ; National Natural Science Foundation of China[U2032218] ; National Natural Science Foundation of China[12111530283] ; National Natural Science Foundation of China[U2230108] ; National Natural Science Foundation of China[12074285] ; National Natural Science Foundation of China[12374118] ; Natural Science Foundation of Shanghai[23ZR1466800] ; High Magnetic Field Laboratory of Anhui Province
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:001319306800001
出版者AMER CHEMICAL SOC
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanghai ; High Magnetic Field Laboratory of Anhui Province
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/135368]  
专题中国科学院合肥物质科学研究院
通讯作者Sheng, Zhigao; Zhang, Zongzhi
作者单位1.Chinese Acad Sci, High Magnet Field Lab, HFIPS, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China
4.Tongji Univ, Sch Phys Sci & Engn, Shanghai Key Lab Special Artificial Microstruct Ma, Shanghai 200092, Peoples R China
5.Fudan Univ, Sch Informat Sci & Technol, Key Lab Micro & Nano Photon Struct MOE, Shanghai 200433, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Jiali,Wang, Zhou,Li, Ziyang,et al. Sub-THz High Spin Precession Frequency in van der Waals Ferromagnet Fe3GaTe2[J]. NANO LETTERS,2024,24.
APA Zhang, Jiali.,Wang, Zhou.,Li, Ziyang.,Li, Tao.,Liu, Shuang.,...&Zhang, Zongzhi.(2024).Sub-THz High Spin Precession Frequency in van der Waals Ferromagnet Fe3GaTe2.NANO LETTERS,24.
MLA Zhang, Jiali,et al."Sub-THz High Spin Precession Frequency in van der Waals Ferromagnet Fe3GaTe2".NANO LETTERS 24(2024).

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来源：合肥物质科学研究院

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