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Disentangling formation of multiple-core holes in aminophenol molecules exposed to bright X-FEL radiation
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy. Univ Gothenburg, Dept Phys, Gothenburg, Sweden..
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy. Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.;Jan Kochanowski Univ Humanities & Sci, Inst Phys, Kielce, Poland..
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Molecular and condensed matter physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy. Univ Gothenburg, Dept Phys, Gothenburg, Sweden.;Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London, England..
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2015 (English)In: Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN 0953-4075, E-ISSN 1361-6455, Vol. 48, no 24, 244003Article in journal (Refereed) Published
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Abstract [en]

Competing multi-photon ionization processes, some leading to the formation of double core hole states, have been examined in 4-aminophenol. The experiments used the linac coherent light source (LCLS) x-ray free electron laser, in combination with a time-of-flight magnetic bottle electron spectrometer and the correlation analysis method of covariance mapping. The results imply that 4-aminophenol molecules exposed to the focused x-ray pulses of the LCLS sequentially absorb more than two x-ray photons, resulting in the formation of multiple core holes as well as in the sequential removal of photoelectrons and Auger electrons (so-called PAPA sequences).

Place, publisher, year, edition, pages
2015. Vol. 48, no 24, 244003
Keyword [en]
multiple ionization processes, double core hole, covariance mapping
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-277804DOI: 10.1088/0953-4075/48/24/244003ISI: 000368622900004OAI: oai:DiVA.org:uu-277804DiVA: diva2:905723
Funder
Swedish Research CouncilGöran Gustafsson Foundation for promotion of scientific research at Uppala University and Royal Institute of TechnologyKnut and Alice Wallenberg FoundationEU, European Research Council
Available from: 2016-02-23 Created: 2016-02-23 Last updated: 2017-11-30Bibliographically approved

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Mucke, MelaniePiancastelli, Maria Novella

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