Penning-Ionization Electron Spectroscopy of Chemisorbed CO
- 16 April 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 42 (16) , 1082-1086
- https://doi.org/10.1103/physrevlett.42.1082
Abstract
Energy distributions of electrons ejected from clean and CO-covered Pd(111) surfaces by impact with metastable He* (excitation energy eV) and ( eV) atoms were measured. The operation of the Penning mechanism, viz., , is demonstrated for adsorbed CO whose valence orbitals could be identified. Thereby a new surface spectroscopic technique with extreme sensitivity to the outmost atomic layer is established.
Keywords
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