Surface and bulk core level binding energy shifts in PtAu alloys
| Autor: | A.S. Flodström, Sven Erik Hörnström, Leif I. Johansson, Ralf Nyholm, Jens Schmidt-May |
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| Rok vydání: | 1985 |
| Předmět: |
Chemistry
Chemical shift Binding energy Alloy Analytical chemistry Synchrotron radiation Surfaces and Interfaces engineering.material Condensed Matter Physics Spectral line Surfaces Coatings and Films Condensed Matter::Materials Science X-ray photoelectron spectroscopy Excited state Materials Chemistry engineering Curve fitting |
| Zdroj: | Surface Science. 160:561-570 |
| ISSN: | 0039-6028 |
| DOI: | 10.1016/0039-6028(85)90794-0 |
| Popis: | The surface core level shift of the 4f72 level in a Pt2%Au and a Pt15%Au alloy has been investigated using high resolution synchrotron radiation excited photoelectron spectroscopy. The bulk and surface components in the recorded spectra have been extracted using a curve fitting procedure. The chemical shifts and the bulk-to-surface intensity ratios are consistent with a strong enrichments of Au to the alloy surfaces. The chemical shifts on nonsegregated surfaces have been measured on these alloys and on a Pt90%Au alloy using conventional XPS. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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