Initial stages of oxidation of Mg(0001) and the role of co-adsorbed alkali metals
UNSPECIFIED. (1999) Initial stages of oxidation of Mg(0001) and the role of co-adsorbed alkali metals. JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 99 . pp. 235-244. ISSN 0368-2048Full text not available from this repository.
Soft X-ray Mg 2p photoemission using synchrotron radiation at moderate spectral resolution has been used to investigate the early stages of oxidation of Mg(0001) with and without preadsorbed Na or K. On the alkali-free surface, some evidence is found for a state characterized by a chemical shift intermediate between that of the metallic and oxidic states, but the limited resolution and overlapping spin-orbit split surface and bulk metallic components precludes more thorough characterization. Preadsorbed Na or K enhance the initial rate of oxidation by approximately a factor of two. It is suggested that the mechanism is an enhancement of the rate of oxygen dissociation. (C) 1999 Elsevier Science B.V. All rights reserved.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA|
|Publisher:||ELSEVIER SCIENCE BV|
|Official Date:||January 1999|
|Number of Pages:||10|
|Page Range:||pp. 235-244|
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