Covalency in oxygen chemisorption as probed by x-ray absorption
- 15 October 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 40 (11) , 7924-7927
- https://doi.org/10.1103/physrevb.40.7924
Abstract
X-ray absorption spectra at the O 1s edge are presented for O(2×2)/Ni(111), O(2×1)/Cu(110), and O/Si(111)-(7×7). The spectra yield information on the distribution of O 2p and np state character in the unoccupied states. The data are compared with that for oxides. We conclude that there is considerable covalency in the chemisorptive bond and that, even for transition metals, this arises mainly from interaction between the O 2p levels and the substrate sp bands.Keywords
This publication has 22 references indexed in Scilit:
- Unoccupied electronic states of CuO: An oxygen 1sx-ray-absorption spectroscopy investigationPhysical Review B, 1989
- Initial stages of oxygen adsorption on Si(111): The stable statePhysical Review B, 1989
- Surface extended x-ray absorption fine-structure study of the O(2×1)/Cu(110) system: Missing-row reconstruction and anisotropy in the surface mean free path and in the surface Debye-Waller factorPhysical Review Letters, 1986
- Metastable molecular precursor for the dissociative adsorption of oxygen on Si(111)Physical Review Letters, 1985
- Bremsstrahlung isochromat spectra and density-of-states calculations for theandtransition metalsPhysical Review B, 1984
- Theory of electronic structure of oxide surfacesProgress in Surface Science, 1983
- Interpretation of the spectra obtained from oxygen-adsorbed and oxidized silicon surfacesPhysical Review B, 1982
- Electronic structure ofoxygen chemisorbed on Ni(001)Physical Review B, 1978
- Soft x ray spectroscopy and the electronic structure of solidsReports on Progress in Physics, 1971
- Molrefraktion von Ionen und Molekülen im Lichte der AtomstrukturThe European Physical Journal A, 1924