Abstract
In Auger electron spectroscopy of temper-embrittled specimens, Auger signals emanating from fractured grain boundaries vary from grain to grain, and the anisotropy in grain-boundary segregation due to the varying grain-boundary structure is primarily responsible for it. Here, another anisotropy, due to the varying angle between the grain boundaries and the incident electron beam, is considered by extending the geometrical model of Matsudaira and Onchi to the cylindrical mirror analyser geometry. Results suggest that the angular effect may explain a substantial amount of the spread in measured Auger peak height ratios.
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Yu, J. A geometrical model on the angular effect in Auger electron spectroscopy. J Mater Sci 25, 1463–1467 (1990). https://doi.org/10.1007/BF00585466
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DOI: https://doi.org/10.1007/BF00585466