XPS studies of nitrogen doping niobium used for accelerator applications

doi:10.1016/j.apsusc.2017.12.214

	XPS studies of nitrogen doping niobium used for accelerator applications
	Yang, Ziqin 1; Lu, Xiangyang 2; Tan, Weiwei 2; Zhao, Jifei 2; Yang, Deyu 2; Yang, Yujia 2; He, Yuan1 ; Zhou, Kui 3
刊名	APPLIED SURFACE SCIENCE
	2018-05-01
卷号	439 页码:1119-1126
关键词	Niobium Nitrogen Doping X-ray Photoelectron Spectroscopy Surface Composition Nitride
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2017.12.214
英文摘要	Nitrogen doping study on niobium (Nb) samples used for the fabrication of superconducting radio frequency (SRF) cavities was carried out. The samples' surface treatment was attempted to replicate that of the Nb SRF cavities, which includes heavy electropolishing (EP), nitrogen doping and the subsequent EP with different amounts of material removal. The surface chemical composition of Nb samples with different post treatments has been studied by XPS. The chemical composition of Nb, O, C and N was presented before and after Gas Cluster Ion Beam (GCIB) etching. No signals of poorly superconducting nitrides NbNx was found on the surface of any doped Nb sample with the 2/6 recipe before GCIB etching. However, in the depth range greater than 30 nm, the content of N element is below the XPS detection precision scope even for the Nb sample directly after nitrogen doping treatment with the 2/6 recipe. (C) 2018 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[91426303] ; National Postdoctoral Program for Innovative Talents[BX201700257]
WOS关键词	Esca ; Oxides ; Boson ; Lhc
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000427457100134
资助机构	National Natural Science Foundation of China ; National Postdoctoral Program for Innovative Talents
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/47625]
专题	中国科学院近代物理研究所
通讯作者	Yang, Ziqin
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 3.China Acad Engn Phys, Inst Appl Elect, Mianyang 621900, Peoples R China
推荐引用方式 GB/T 7714	Yang, Ziqin,Lu, Xiangyang,Tan, Weiwei,et al. XPS studies of nitrogen doping niobium used for accelerator applications[J]. APPLIED SURFACE SCIENCE,2018,439:1119-1126.
APA	Yang, Ziqin.,Lu, Xiangyang.,Tan, Weiwei.,Zhao, Jifei.,Yang, Deyu.,...&Zhou, Kui.(2018).XPS studies of nitrogen doping niobium used for accelerator applications.APPLIED SURFACE SCIENCE,439,1119-1126.
MLA	Yang, Ziqin,et al."XPS studies of nitrogen doping niobium used for accelerator applications".APPLIED SURFACE SCIENCE 439(2018):1119-1126.