Density of State Effects in AgThreshold Auger Spectra
- 2 January 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 74 (1) , 42-45
- https://doi.org/10.1103/physrevlett.74.42
Abstract
The energy distribution of Auger electrons emitted from solid Ag is studied as a function of the exciting photon energy in the threshold region. The Auger line not only exhibits a Raman-type energy dispersion and a reduced core hole lifetime broadening, but its line shape is also markedly modulated. For subthreshold excitation, additional structure appears within the highly asymmetric emission profile. This is interpreted as being due to the local density of empty states probed in the intermediate dipole transitions. A simple numerical model qualitatively reproduces the gross features of the measured electron distribution.
Keywords
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