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Electron backscattering coefficients for Cr, Co, and Pd solids: A Monte Carlo simulation study

文献类型：期刊论文

作者Imtiaz, H. I.5; Khan, M. S. S.4; Hussain, A.3; Mao, S. F.2; Zou, Y. B.6; Ding, Z. J.1,5
刊名JOURNAL OF APPLIED PHYSICS
出版日期2024-06-14
卷号135
ISSN号0021-8979
DOI10.1063/5.0208968
通讯作者Mao, S. F.(sfmao@ustc.edu.cn) ; Ding, Z. J.(zjding@ustc.edu.cn)
英文摘要We have calculated electron backscattering coefficients, eta(E-p), at primary electron energies E-p of 0.1-100 keV for three elemental and intermediate atomic number solids, Cr, Co and Pd, with an up-to-date Monte Carlo simulation model. A relativistic dielectric functional approach is adopted for the calculation of the electron inelastic cross section, where several different datasets of optical energy loss function (ELF) are adopted. The calculated backscattering coefficient is found to be substantially affected by the ELF, where the influence can be seen to follow the f- and ps-sum rules and the resultant energy dependence of electron inelastic mean free path. To understand the uncertainties involved in a comparison with experimental data both the theoretical uncertainty due to the elastic cross-section model and the experimental systematic error for the contaminated surfaces are investigated. A total of 192 different scattering potentials are employed for the calculation of Mott's electron elastic cross section and this theoretical uncertainty is confirmed to be small. On the other hand, the simulation of contaminated Co and Pd surfaces with several carbonaceous atomic layers can well explain the experimental data. The present results indicate that accurate backscattering coefficient data should be either measured from fully cleaned surfaces or obtained from modern Monte Carlo theoretical calculations involving reliable optical constants data. With the recent progress in the accurate measurement of optical constants by reflection electron energy loss spectroscopy technique, constructing a reliable theoretical database of electron backscattering coefficients for clean surfaces of elemental solids is highly hopeful. (c) 2024 Author(s).
WOS关键词SECONDARY-ELECTRON ; SCATTERING ; ENERGY ; IMAGES ; EMISSION ; MODEL ; MICROSCOPY ; RANGE
资助项目S. F. Mao[2019YFE03080500] ; National MCF Energy R&D Program of China[2022HSC-CIP010] ; Collaborative Innovation Program of Hefei Science Centre, CAS[2022D01A223] ; Xinjinag Uygur Autonomous Region[BP0719016] ; Chinese Education Ministry through 111 Project 2.0
WOS研究方向Physics
语种英语
WOS记录号WOS:001245501600004
出版者AIP Publishing
资助机构S. F. Mao ; National MCF Energy R&D Program of China ; Collaborative Innovation Program of Hefei Science Centre, CAS ; Xinjinag Uygur Autonomous Region ; Chinese Education Ministry through 111 Project 2.0
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/136403]  
专题中国科学院合肥物质科学研究院
通讯作者Mao, S. F.; Ding, Z. J.
作者单位1.Univ Sci & Technol China, Hefei Natl Res Ctr Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
2.Univ Sci & Technol China, Dept Nucl Sci & Engn, Hefei 230026, Anhui, Peoples R China
3.Shenzhen Univ, Inst Adv Studies, Shenzhen 518060, Guangdong, Peoples R China
4.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China
5.Univ Sci & Technol China, Dept Phys, Hefei 230026, Anhui, Peoples R China
6.Xinjiang Normal Univ, Sch Phys & Elect Engn, Urumqi 830054, Xinjiang, Peoples R China
推荐引用方式
GB/T 7714		 Imtiaz, H. I.,Khan, M. S. S.,Hussain, A.,et al. Electron backscattering coefficients for Cr, Co, and Pd solids: A Monte Carlo simulation study[J]. JOURNAL OF APPLIED PHYSICS,2024,135.
APA Imtiaz, H. I.,Khan, M. S. S.,Hussain, A.,Mao, S. F.,Zou, Y. B.,&Ding, Z. J..(2024).Electron backscattering coefficients for Cr, Co, and Pd solids: A Monte Carlo simulation study.JOURNAL OF APPLIED PHYSICS,135.
MLA Imtiaz, H. I.,et al."Electron backscattering coefficients for Cr, Co, and Pd solids: A Monte Carlo simulation study".JOURNAL OF APPLIED PHYSICS 135(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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