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A charge transfer analysis of the resonant 2p3p3p Auger spectra of CaF2

By F.M.F. de Groot, R. Ruus and M. Elango

Abstract

A theoretical description is given of the 2p3p3p (= L2,3M2,3M2,3) resonant Auger spectra in CaF2. Using a charge-transfer multiplet analysis, it is shown that the 2p3p3p Auger spectra excited at the 2p x-ray absorption edge show a large variation if one scans through the edge and excites the different symetry states. A detailed comparison is made with experiment. The origins of the symmetry effects on the resonance are analyzed and the full charge-transfer multiplet theory is approximated using crystal-field and atomic multiplet calculations. The analysis shows that the Auger spectra of CaF2 are dominated by the resonance channel, with little contribution of the normal Auger channel. The differences with other recently used analysis are discussed

Topics: Natuur- en Sterrenkunde
Year: 1995
OAI identifier: oai:dspace.library.uu.nl:1874/1549
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