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Determination of spin pumping effect in CoFeB/Ir bilayer
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
Corresponding AuthorZhao, Xiao-Tian(xtzhao@imr.ac.cn) ; He, Wei(hewei@iphy.ac.cn)
2020-03-01
Source PublicationJOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN0304-8853
Volume497Pages:4
AbstractThe 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.
KeywordSpin pumping Spin diffusion length Spintronics Heavy metal Thin film
Funding OrganizationNational Natural Sciences Foundation of China ; National Key Research Program of China ; Key Research Program of Frontier Sciences, CAS
DOI10.1016/j.jmmm.2019.165971
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Condensed Matter
WOS IDWOS:000501596800016
PublisherELSEVIER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136222
Collection中国科学院金属研究所
Corresponding AuthorZhao, Xiao-Tian; He, Wei
Affiliation1.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
Recommended Citation
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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