Electron-induced KLL Auger electron spectroscopy of Fe,Cu and Ge |
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| Institution: | 1. Department of Physics, Faculty of Sciences, University Ferhat Abbas-Setif 1, Algeria;2. High-Resolution Dosage, Analysis and Characterization Laboratory, University Ferhat Abbas-Setif 1, Algeria;3. Science of Matter Department, Faculty of Sciences, Hadj Lakhdar University, Algeria;1. Cz?stochowa Jan D?ugosz University, Institute of Chemistry, Environmental Protection and Biotechnology, al. Armii Krajowej 13/15, 42200 Cz?stochowa, Poland;2. Ivan Franko Lviv National University, Department of Inorganic Chemistry, Kyryla i Mefodia 6 79005 Lviv, Ukraine;1. Nuclear Physics Department, Andhra University, Visakhapatnam 530 003, India;2. B.G.B.S. Women’s College, Narsapur 534 275, India;3. Nitte Meenakshi Institute of Technology, Bangalore 560 064, India;1. Institute of Technology, Pedagogical University, Podchoranzych Str. 2, 30-084 Cracow, Poland;2. Ivan Franko National University, Kyryla & Mefodiya Str. 8, 79-005 Lviv, Ukraine;3. Institute for Metal Physics of the N.A.S. of Ukraine, Vernadskogo Str. 36, 03142 Kyiv, Ukraine;4. Institute of Technical Sciences of SASA, Knez Mihailova 35/IV, PO Box 377, 11000 Belgrade, Serbia;5. Lviv National University of Veterinary Medicine and Biotechnologies, Lviv, Ukraine;1. Department of Applied Physics, School of Science, Hunan University of Technology, Zhuzhou, 412007, China;2. School of Physics and Electronics, North China University of Water Resources and Electric Power, Zhengzhou, 450011, China |
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| Abstract: | KLL Auger spectra excited by electrons with energies in the 30–35 keV range of Fe, Cu and Ge films were measured, using thin free-standing films. It was possible to obtain spectra with an energy resolution of about 1 eV. The observed spectra can not be described satisfactorily by just the multiplet splitting of the final state as calculated for an isolated atom. Additional features, due in part to intrinsic (shake satellites) and in part to extrinsic (energy loss of the escaping electron) processes formed a large fraction on the observed intensities. In particular a number of distinct satellite structures that are not predicted by the atomic Auger process are observed. For Fe and Cu the satellite peaks can be explained in terms of shake-up processes from the 3d5/2–4d5/2 states. Similar satellite structures observed in Ge are partly attributed to plasmon creation and partly to shake-up processes. It is demonstrated that both the thickness dependence of the observed intensity distributions and transmission electron energy loss measurements contain invaluable information for the interpretation of these spectra. |
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