Abstract
The geometry of adsorbed atoms on ordered surfaces may be determined by different experimental techniques. Among them the most used are ion scattering spectroscopy-(ISS) [1,2], surface extended X-ray absorption fine structure (SEXAFS) [3], low energy electron diffraction (LEED) [4] and normal photoelectron diffraction (NPD) [5]. All these techiques show limits in the number of possible systems to be exploited. In particular in the case of adsorbed carbon atoms the ISS suffers of low back-scattering amplitude while the carbon contamination of the optical elements [6] is the most limiting factor in SEXAFS and NPD techniques. LEED analysis is not affected by the above limits, nevertheless it requires careful and time-consuming computer analysis.
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A more extensive study will be reported elsewhere.
The theoretical curve to be compared to the experimental one has been obtained from the second derivative of the theoretical X(E) after Fourier integration between the same limits used for the experimental curve.
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© 1983 Springer-Verlag Berlin Heidelberg
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Modesti, S. et al. (1983). Geometrical Structure of Graphitic Carbon on Ni(111) Studied by Extended Energy Loss Fine Structure Spectroscopy (EELFS). In: Bianconi, A., Incoccia, L., Stipcich, S. (eds) EXAFS and Near Edge Structure. Springer Series in Chemical Physics, vol 27. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-50098-5_89
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DOI: https://doi.org/10.1007/978-3-642-50098-5_89
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