A study of electronic states of CO on Mo (110) by metastable helium de-excitation spectroscopy
- 30 April 1980
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 13 (12), 2441-2447
- https://doi.org/10.1088/0022-3719/13/12/022
Abstract
The electronic states of CO molecularly adsorbed (1000 Langmuirs exposure) on Mo (110) are studied by metastable helium atom de-excitation spectroscopy (MDS) founded on the metastable-surface interaction model described by Hagstrum. The spectrum obtained after deconvolution, compared with the direct photoemission spectrum, shows a density-of-states profile corresponding to this adsorption and suggests a possible mechanism for the CO-Mo bond involving the 5 sigma +1 pi and 2 pi * orbitals of the CO molecule. The results obtained show that MDS is very well suited to research on the electronic properties of surfaces.Keywords
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