Dears,
I'm Victor Mancir. Me and my group are developing studyings in determine
optical properties of an material by its energy loss spectra in XPS technique.
Now, we are applying this study to aluminium and we would like to compare our
experimental results with theoretical calculations. A classical way is to use
the imaginary part of the dielectric function reciprocal at q = 0 (optical
absorption). But, in the case of XPS aluminium 2p spectra, we observe an
enlargement due to the fact that there is a non-negligible momentum transfer
(q>0). Please, we would like to know if there is a version of the Optic program
of Wien2K that could take into account transition for q not equal to zero.
With my best wishes,
Victor Mancir_______________________________________________
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