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Experimental study of matrix effects in quantitative auger analysis of binary metal alloys
Author(s) -
Mathieu H. J.,
Landolt D.
Publication year - 1981
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.740030403
Subject(s) - auger , alloy , matrix (chemical analysis) , auger electron spectroscopy , metal , binary number , materials science , electron , auger effect , atomic physics , analytical chemistry (journal) , chemistry , molecular physics , metallurgy , physics , composite material , nuclear physics , arithmetic , mathematics , chromatography
The importance of matrix effects in quantitative AES is investigated by comparing experimental results with theory. Experimental AES amplitude ratios are presented as a function of composition of five different binary alloy systems Ni–Mg, Ni–Pd, Ag–Pd, Mo–Fe and Cr–Fe. Contamination free surfaces were produced by fracturing in situ under UHV conditions. Matrix correction factors were evaluated applying literature data and considering the influence of atomic density variation, of the escape depth of Auger electrons and of backscattered electrons. The influence of the matrix is large only for alloy components differing widely in density and atomic number. Comparison of calculated with experimental data reveals that agreement can be achieved within 2–15% depending on the alloy system considered.