Defects in C(2x2) oxygen overlayers on Ni(100): The effect on vibrational spectra
The Journal of Chemical Physics, ISSN: 0021-9606, Vol: 86, Issue: 5, Page: 2986-2989
1987
- 4Citations
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Article Description
We have modeled vacancy defects in C(2x2) oxygen overlayers on Ni(100) to examine the effect which such vacancies have on the vibrational spectra as measured by inelastic scattering of low energy electrons (HREELS). Particular attention has been given to the change in frequency of the collective modes of the oxygen overlayer as a function of the wave vector of the mode. We find that this frequency dispersion is modified by the vacancies and that there are distinctive changes in the expected peak shapes as a function of the scattering geometry. © 1987 American Institute of Physics.
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