Vibrational broadening in core-level spectra from adsorbates: C, N and O on Ni(100)
- 2 October 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 63 (14) , 1483-1486
- https://doi.org/10.1103/physrevlett.63.1483
Abstract
The x-ray-photoelectron core-level linewidths show pronounced differences between atomic C, N, and O adsorbed on Ni(100). Furthermore, the widths are temperature dependent. The observed effects are reproduced within a model based on the creation of vibrational excitations in the core-ionization process. This explains the large linewidths observed for many adsorbate systems. The results have important consequences for the general understanding of line shapes in core-level spectroscopies.Keywords
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