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Attenuation lengths of low-energy electrons in solids derived from the yield of proton-excited Auger electrons: beryllium and aluminum

Published

Author(s)

Cedric J. Powell, R Stein, J Needham, T J. Driscoll

Abstract

Values are reported for the absolute yields of KVV Auger electrons from beryllium and L23VV Auger electrons from aluminum excited by 60- to 220-keV proton bombardment. The measurements were made using semi-infinite evaporated samples, and the results were used to derive effective values of the inelastic attenuation lengths for low-energy Auger electrons in the surface regions of the samples. The attenuation lengths determined using this technique were 6.1 Aring} for 100-eV electrons in Be and 1.9 Aring} for 67-eV electrons in Al. These effective attenuation lengths are appropriate for use in Auger-electron spectroscopy and x-ray photoelectron spectroscopy.
Citation
Physical Review B (Condensed Matter and Materials Physics)
Volume
16
Issue
4

Citation

Powell, C. , Stein, R. , Needham, J. and Driscoll, T. (1977), Attenuation lengths of low-energy electrons in solids derived from the yield of proton-excited Auger electrons: beryllium and aluminum, Physical Review B (Condensed Matter and Materials Physics) (Accessed April 24, 2024)
Created August 14, 1977, Updated October 12, 2021