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Determination of spin pumping effect in CoFeB/Ir bilayer

文献类型：期刊论文

作者Sun, Rui1,2,3; Li, Yan1,2,3; Xie, Z. K.1,2,3; Li, Yang1,2,3; Zhao, Xiao-Tian4; Liu, Wei4; Zhang, Z. D.4; Zhu, T.1,2,3; Cheng, Zhao-Hua1,2,3; He, Wei1,2,3,5
刊名JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
出版日期2020-03-01
卷号497页码:4
ISSN号0304-8853
关键词Spin pumping Spin diffusion length Spintronics Heavy metal Thin film
DOI10.1016/j.jmmm.2019.165971
通讯作者Zhao, Xiao-Tian(xtzhao@imr.ac.cn) ; He, Wei(hewei@iphy.ac.cn)
英文摘要The spin pumping effect of CoFeB/Ir bilayers has been investigated via the broadband ferromagnetic resonance measurement. With increasing the thickness of heavy metal Ir layer, the Gilbert damping factor of 8 nm CoFeB film increases from 7 x 10(-3) to 1.1 x 10(-2), and the additional damping factors induced by the spin pumping effect quickly reaches its saturation value. According to the spin pumping theory, the spin mixing conductance of CoFeB/Ir and the spin diffusion length of Ir were obtained. The spin mixing conductance is 2.14 x 10(19) m(-2). Furtherly, the spin diffusion length is only 1.34 nm, which is quite shorter compared with the heavy metal Pt. Our results reveal the existence of the strong spin-orbit coupling in the heavy metal Ir, which can be a potential material for the application in spintronic devices.
资助项目National Natural Sciences Foundation of China[51871235] ; National Natural Sciences Foundation of China[51671212] ; National Natural Sciences Foundation of China[51801212] ; National Key Research Program of China[2015CB921403] ; National Key Research Program of China[2016YFA0300701] ; National Key Research Program of China[2017YFB0702702] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-JSC023] ; Key Research Program of Frontier Sciences, CAS[KJZD-SW-M01] ; Key Research Program of Frontier Sciences, CAS[ZDYZ2012-2]
WOS研究方向Materials Science ; Physics
语种英语
出版者ELSEVIER
WOS记录号WOS:000501596800016
资助机构National Natural Sciences Foundation of China ; National Key Research Program of China ; Key Research Program of Frontier Sciences, CAS
源URL[http://ir.imr.ac.cn/handle/321006/136221]  
专题金属研究所_中国科学院金属研究所
通讯作者Zhao, Xiao-Tian; He, Wei
作者单位1.Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Liaoning, Peoples R China
5.Chinese Acad Sci, Fujian Inst Innovat, Fuzhou 350108, Fujian, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Rui,Li, Yan,Xie, Z. K.,et al. Determination of spin pumping effect in CoFeB/Ir bilayer[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2020,497:4.
APA Sun, Rui.,Li, Yan.,Xie, Z. K..,Li, Yang.,Zhao, Xiao-Tian.,...&He, Wei.(2020).Determination of spin pumping effect in CoFeB/Ir bilayer.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,497,4.
MLA Sun, Rui,et al."Determination of spin pumping effect in CoFeB/Ir bilayer".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 497(2020):4.

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来源：金属研究所

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