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Auger Electron Angular Distributions from Surfaces: Direct Comparison with Isoenergetic Photoelectrons

Louis J. Terminello and John J. Barton
Science
New Series, Vol. 251, No. 4998 (Mar. 8, 1991), pp. 1218-1220
Stable URL: http://www.jstor.org/stable/2875307
Page Count: 3
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Auger Electron Angular Distributions from Surfaces: Direct Comparison with Isoenergetic Photoelectrons
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Abstract

Angular distribution patterns of Auger electrons and of photoelectrons from a Cu (001) surface were measured at the same electron kinetic energy. These measurements reveal that the low kinetic energy angular distributions for Cu Auger electrons and Cu 3p$_{3/2}$ photoelectrons differ substantially. This direct comparison between the photoelectron and Auger electron angular distributions demonstrates that, in some circumstances, the Auger process produces a complicated source wave whose nature must be explored before Auger angular distributions can be used for surface structure analysis.

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