Structure and bonding in alkali metal overlayers
Conference
·
OSTI ID:126237
- Max-Planck-Gesellschaft, Berlin (Germany)
Despite the fact that alkali metal atoms contain only a single valence electron, their bonding to transition metal surfaces is far from being simple as will be demonstrated for chemisorption of Li, Na, K, Rb, and Cs on a Ru(0001) surface, including the influence of co-adsorbates. The local adsorption geometry in commensurate phases may vary with coverage and also by the presence of coadsorbates. The change of the adsorption site is closely linked to the tendency for vertical displacements of the substrate atoms. If effects of varying coordination number are properly taken into account, the hard sphere radii are remarkably insensitive to varying degrees of ionicity and close to the covalent Pauling radii.
- OSTI ID:
- 126237
- Report Number(s):
- CONF-950402--
- Country of Publication:
- United States
- Language:
- English
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