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- Title
Oxygen-Induced Nonuniformity in Surface Electrical-Potential Barrier.
- Authors
Sun, Chang Q.; Bai, Chunli
- Abstract
In order to quantify the behaviour of surface electrons on O-chemisorbed metal surface, as observed wtith STM and STS, we developed a model on nonuniform electrical potential barrier. The new modelling approach contains: (1) the elastic potential, the spatial variation and the energy dependence of the inelastic damping are unified by the electronic distribution; (2) the O-induced spatial-localisation and the nonuniformity in energy-state are taken into effect; (3) the single-variable parameterised functions simplify the numerical optimisation and ensure the uniqueness in solutions. Therefore, crystal structure models can be judged by comparing the shapes of the crystal-dependent-z0(E) profiles that exhibit joint features of topography and spectroscopy.
- Publication
Modern Physics Letters B, 1997, Vol 11, Issue 5, p201
- ISSN
0217-9849
- Publication type
Article
- DOI
10.1142/S021798499700027X