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Photoelectron recoil in CO in the x-ray region up to 7 keV
Univ Turku, Dept Phys & Astron, FI-20014 Turku, Finland.
Oregon State Univ, Dept Chem, Gilbert Hall 153, Corvallis, OR 97331 USA.
Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan.
Synchrotron SOLEIL, BP 48, FR-91192 Gif Sur Yvette, France.
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2017 (English)In: PHYSICAL REVIEW A, ISSN 2469-9926, Vol. 95, no 4, 042509Article in journal (Refereed) Published
Abstract [en]

Carbon 1s photoelectron spectra of CO molecules in gas phase were recorded in the tender x-ray energy range, from 2.3 to 6.9 keV. The intensity ratios of individual peaks from nu = 0 to 3 within the vibrational progression of the C 1s photoelectron spectrum were determined at the various photon energies and are shown to be strongly affected by the photoelectron recoil effect. The experimental vibrational intensity ratios are compared with theoretical predictions at different levels of accuracy. Developments of the recoil model, using generalized Franck-Condon factors, rovibrational coupling, Morse potential energy curves, and accurate angular averaging are presented and applied to the analysis of the experimental results.

Place, publisher, year, edition, pages
2017. Vol. 95, no 4, 042509
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-322815DOI: 10.1103/PhysRevA.95.042509ISI: 000399932400005OAI: oai:DiVA.org:uu-322815DiVA: diva2:1106862
Available from: 2017-06-08 Created: 2017-06-08 Last updated: 2017-06-08Bibliographically approved

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