Quantitative AES of binary alloys: A comparison between handbook and pseudo-first principles corrections

摘要: Quantitative Auger electron spectroscopy of a number binary alloys was studied. A pseudo-first principles correction scheme applied to series chromium/iron, chromium/nickel, and copper/gold alloys. Peak-to-peak height ratios differentiated spectra were corrected for elemental differences in ionization cross section, transition probability, atomic density, escape depth, backscattering factor, sputter yield. These corrections changed the original ratio by factors ranging from 1.12 (for chromium/iron with 10 kV primary beam) 4.63 5 beam). The calculated surface concentrations compared wet chemistry bulk all cases, this first an improvement over using uncorrected peak concentration determination. For 5050 at% alloy each series, data error 15%, chromium/nickel 2%, 36%. In except system, obtained method had smaller than sensitivity Handbook Electron Spectroscopy.