Publications in Scientific Journals:

W.S.M. Werner:
"Differential probability for surface and volumeelectronic excitations in Fe, Pd and Pt";
Surface Science, 588 (2005), 26 - 40.

English abstract:
The normalized differential mean free path for volume scattering and the differential surface excitation probability
for medium energy electrons travelling in Fe, Pd and Pt are extracted from reflection electron energy loss spectra
(REELS). This was achieved by means of a recently introduced procedure in which two REELS spectra taken under
different experimental conditions are simultaneously deconvoluted. In this way, it is possible to obtain the unique reconstruction
for the surface and volume single scattering loss distribution. The employed method is compared with a procedure
that is frequently used for this purpose [S. Tougaard, I. Chorkendorff, Phys. Rev. B 35 (1987) 6570]. It is shown,
both theoretically and through analysis of model spectra as well as experimental data that the approach by Tougaard
and Chorkendorff does not result in a single scattering loss distribution. Rather, it gives a mixture of surface, bulk and
mixed scattering of any order.
2005 Published by Elsevier B.V.
Keywords: Reflection electron energy loss spectroscopy (REELS); Electron; Scattering; Inelastic; Surface; Volume; Dielectric function

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