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Principal-components analysis (PCA) followed by factor analysis enables one to decompose the structure of Auger lines originating from large effects such as energy shifts induced by chemical effects. The aim of the present contribution is to show that PCA can also be effectively used for detection of composed structure in a set of Auger spectra even if the observed changes in line shape are very subtle...
This work investigates the process of palladium diffusion through grain boundaries of thin polycrystalline silver films. Auger electron spectroscopy (AES) is employed to determine the composition of the topmost layers. Because of the overlapping of Ag and Pd Auger lines, principal component analysis (PCA) and factor analysis (FA) were used to decompose the series of Auger spectra recorded during annealing...
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