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  Conformational and nuclear dynamics effects in molecular Auger spectra: fluorine core-hole decay in CF4

Arion, T., Takahashi, O., Püttner, R., Ulrich, V., Barth, S., Lischke, T., et al. (2014). Conformational and nuclear dynamics effects in molecular Auger spectra: fluorine core-hole decay in CF4. Journal of Physics B, 47(12): 124033. doi:10.1088/0953-4075/47/12/124033.

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 Creators:
Arion, T.1, 2, Author
Takahashi, O.3, Author
Püttner, R.4, Author
Ulrich, V.1, Author
Barth, S.1, Author
Lischke, T.5, Author           
Bradshaw, Alexander M.1, 6, Author           
Förstel, M.7, Author
Hergenhahn, Uwe7, Author
Affiliations:
1Max-Planck-Institut für Plasmaphysik, EURATOM Association, Boltzmannstr. 2, D-85748 Garching, Germany , ou_persistent22              
2Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, D-22761 Hamburg, Germany, ou_persistent22              
3Institute for Sustainable Sciences and Development, Hiroshima University, Kagamiyama, Higashi-Hiroshima, 739-8526, Japan , ou_persistent22              
4Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin-Dahlem, Germany , ou_persistent22              
5Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              
6Theory, Fritz Haber Institute, Max Planck Society, ou_634547              
7Max-Planck-Institut für Plasmaphysik, EURATOM Association, Wendelsteinstr. 1, D-17491 Greifswald, Germany , ou_persistent22              

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 Abstract: In a molecular Auger spectrum information on the decaying state is implicitly ensemble-averaged. For a repulsive core-ionized state, for example, contributions from all parts of its potential curve are superimposed in the Auger spectrum. Using carbon tetrafluoride (CF4, tetrafluoromethane), we demonstrate for the first time that these contributions can be disentangled by recording photoelectron–Auger electron coincidence spectra with high energy resolution. For the F K-VV spectrum of CF4, there are significant differences in the Auger decay at different intermediate state (single core hole) geometries. With the help of calculations, we show that these differences result primarily from zero-point fluctuations in the neutral molecular ground state, but are amplified by the nuclear dynamics during Auger decay.

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Language(s): eng - English
 Dates: 2013-12-202014-02-012014-06-102014-06-28
 Publication Status: Issued
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1088/0953-4075/47/12/124033
 Degree: -

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Title: Journal of Physics B
Source Genre: Journal
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Publ. Info: Bristol, UK : IOP Pub.
Pages: - Volume / Issue: 47 (12) Sequence Number: 124033 Start / End Page: - Identifier: ISSN: 0953-4075
CoNE: https://pure.mpg.de/cone/journals/resource/954928494403