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Extraction of the true Auger lineshape of graphite and diamond from experimental data using fast Fourier transformation
Author(s) -
Steiner A.,
Falke U.
Publication year - 1995
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.740231109
Subject(s) - auger , normalization (sociology) , fourier transform , auger electron spectroscopy , chemistry , atomic physics , spectral line , computational physics , transformation (genetics) , graphite , diamond , analytical chemistry (journal) , physics , nuclear physics , quantum mechanics , biochemistry , organic chemistry , chromatography , sociology , anthropology , gene
In order to obtain reliable information from measured Auger peaks concerning the chemical state, it is necessary to extract the true lineshape from experimental data. To achieve this, a method involving a background correction using the Bethe formula followed by a correction of the Auger electron inelastic interactions using fast Fourier transformation is described. With this procedure one obtains the true Auger lineshape on a flat background, enabling normalization of the peaks to the same area and a correction of different intensities due to diverse primary beam currents, the channeltron response or physical influences of the sample. The described method has been applied to spectra obtained from three different forms of carbon.