Shake-up transitions in S 2p, S 2s and F 1s photoionization of the SF6 molecule
2009 (English)In: Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN 0953-4075, E-ISSN 1361-6455, Vol. 42, no 5, 055102- p.Article in journal (Refereed) Published
Shake-up transitions occurring upon core photoionization in the SF6 molecule have been studied experimentally and theoretically. The S 2p, S 2s and F 1s shake-up satellite photoelectron spectra were measured using A1 Ka radiation at 1487 eV photon energy. They have been interpreted with the aid of ab initio configuration interaction calculations in the sudden-limit approximation. For the S 2p spectrum, conjugate shake-up transitions were also calculated. Clear evidence of conjugate processes is observed in the S 2p shake-up spectrum measured at 230 eV photon energy. The experimental and theoretical S 2p and S 2s shake-up spectra show very similar structures mainly due to orbital relaxation involving S 3s and 3p participation. For the calculation of the F 1s shake-up spectrum, the symmetry lowering of the molecule in the final states was considered, resulting in a good agreement with the experiment.
Place, publisher, year, edition, pages
2009. Vol. 42, no 5, 055102- p.
IdentifiersURN: urn:nbn:se:uu:diva-130025DOI: 10.1088/0953-4075/42/5/055102ISI: 000263600900006OAI: oai:DiVA.org:uu-130025DiVA: diva2:345882