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The interference effect in Auger-photoelectron coincidence spectroscopy

Journal article
Authors Masahide Ohno
Lennart Sjögren
Published in J. Phys. B: At. Mol. Opt. Phys.
Volume 36
Pages 4519-4533
ISSN 0946-2171
Publication year 2003
Published at Department of Physics (GU)
Pages 4519-4533
Language en
Links dx.doi.org/10.1088/0953-4075/36/22/...
Subject categories Physical Sciences, Atom and Molecular Physics and Optics, Atomic physics

Abstract

When core-hole decay develops along two different paths, i.e. by a direct Auger-transition path and by an indirect path passing via two-hole–one-particle excitation and de-excitation, the screening of the direct Auger-transition matrix element by the particle–hole (de-)excitations leads to a pronounced interference effect in the Auger-electron emission. The manifestation of the interference effect in the Auger-photoelectron coincidence spectroscopy spectrum is discussed in the light of the unique capabilities of the coincidence measurements.

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