Separation of surface oxide from bulk Ni by selective Ni 3p photoelectron spectroscopy for chemical analysis in coincidence with Ni M-edge Auger electrons
Abstract The chemical shift of core level binding energies makes electron spectroscopy for chemical analysis (ESCA) a workhorse analytical tool for science and industry. For some elements, close lying and overlapping spectral features within the natural life time broadening restrict applications. We...
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Nature Portfolio
2021
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oai:doaj.org-article:6dc329fcedd1415593c60bc4b40f8ebe2021-12-02T16:46:35ZSeparation of surface oxide from bulk Ni by selective Ni 3p photoelectron spectroscopy for chemical analysis in coincidence with Ni M-edge Auger electrons10.1038/s41598-021-96108-x2045-2322https://doaj.org/article/6dc329fcedd1415593c60bc4b40f8ebe2021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96108-xhttps://doaj.org/toc/2045-2322Abstract The chemical shift of core level binding energies makes electron spectroscopy for chemical analysis (ESCA) a workhorse analytical tool for science and industry. For some elements, close lying and overlapping spectral features within the natural life time broadening restrict applications. We establish how the core level binding energy chemical shift can be picked up experimentally by the additional selectivity through Auger electron photoelectron coincidence spectroscopy (APECS). Coincident measurement of Ni 3p photoemission with different MVV Auger regions from specific decay channels, narrows the 3p core-levels to a width of 1.2 eV, resolves the spin–orbit splitting of 1.6 eV and determines the chemical shift of Ni 3p levels of a Ni(111) single crystal and its oxidized surface layer to 0.6 eV.Artur BornFredrik O. L. JohanssonTorsten LeitnerDanilo KühnAndreas LindbladNils MårtenssonAlexander FöhlischNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021) |
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Medicine R Science Q Artur Born Fredrik O. L. Johansson Torsten Leitner Danilo Kühn Andreas Lindblad Nils Mårtensson Alexander Föhlisch Separation of surface oxide from bulk Ni by selective Ni 3p photoelectron spectroscopy for chemical analysis in coincidence with Ni M-edge Auger electrons |
| description |
Abstract The chemical shift of core level binding energies makes electron spectroscopy for chemical analysis (ESCA) a workhorse analytical tool for science and industry. For some elements, close lying and overlapping spectral features within the natural life time broadening restrict applications. We establish how the core level binding energy chemical shift can be picked up experimentally by the additional selectivity through Auger electron photoelectron coincidence spectroscopy (APECS). Coincident measurement of Ni 3p photoemission with different MVV Auger regions from specific decay channels, narrows the 3p core-levels to a width of 1.2 eV, resolves the spin–orbit splitting of 1.6 eV and determines the chemical shift of Ni 3p levels of a Ni(111) single crystal and its oxidized surface layer to 0.6 eV. |
| format |
article |
| author |
Artur Born Fredrik O. L. Johansson Torsten Leitner Danilo Kühn Andreas Lindblad Nils Mårtensson Alexander Föhlisch |
| author_facet |
Artur Born Fredrik O. L. Johansson Torsten Leitner Danilo Kühn Andreas Lindblad Nils Mårtensson Alexander Föhlisch |
| author_sort |
Artur Born |
| title |
Separation of surface oxide from bulk Ni by selective Ni 3p photoelectron spectroscopy for chemical analysis in coincidence with Ni M-edge Auger electrons |
| title_short |
Separation of surface oxide from bulk Ni by selective Ni 3p photoelectron spectroscopy for chemical analysis in coincidence with Ni M-edge Auger electrons |
| title_full |
Separation of surface oxide from bulk Ni by selective Ni 3p photoelectron spectroscopy for chemical analysis in coincidence with Ni M-edge Auger electrons |
| title_fullStr |
Separation of surface oxide from bulk Ni by selective Ni 3p photoelectron spectroscopy for chemical analysis in coincidence with Ni M-edge Auger electrons |
| title_full_unstemmed |
Separation of surface oxide from bulk Ni by selective Ni 3p photoelectron spectroscopy for chemical analysis in coincidence with Ni M-edge Auger electrons |
| title_sort |
separation of surface oxide from bulk ni by selective ni 3p photoelectron spectroscopy for chemical analysis in coincidence with ni m-edge auger electrons |
| publisher |
Nature Portfolio |
| publishDate |
2021 |
| url |
https://doaj.org/article/6dc329fcedd1415593c60bc4b40f8ebe |
| work_keys_str_mv |
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