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Vibrationally resolved core-photoelectron spectroscopy as an infinite-slit interferometry
KTH, Superseded Departments, Biotechnology.
KTH, Superseded Departments, Biotechnology.
KTH, Superseded Departments, Biotechnology.ORCID iD: 0000-0002-1763-9383
2001 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 64, no 1Article in journal (Refereed) Published
Abstract [en]

During a molecular vibration, an atom changes continuously its position. Just as the emitted photoelectron waves, the electromagnetic waves absorbed by the atom in the different positions are strictly coherent and have different well-defined phases. These phases depend on the relation between the instantaneous internuclear distance and the photoelectron, respectively, photon wavelengths. We predict that the interference of these coherent waves strongly influences the vibrational profile of the photoelectron spectra of core electrons in a molecule. This effect increases with increasing x-ray photon frequency and results in a deformation and broadening of the vibrational profile. In the case of surface adsorbed molecules, the vibrational profile depends strongly on the direction of the photoelectron ejection and photon momentum, and the orientational sensitivity of a vibrational profile can even be used as a tool to define the orientation of adsorbed molecules.

Place, publisher, year, edition, pages
2001. Vol. 64, no 1
Keyword [en]
RAY, PHOTOEMISSION, SCATTERING, MOLECULES
National Category
Atom and Molecular Physics and Optics Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-13848ISI: 000169711400040OAI: oai:DiVA.org:kth-13848DiVA: diva2:327752
Note
QC 20100630Available from: 2010-06-30 Created: 2010-06-30 Last updated: 2010-06-30Bibliographically approved
In thesis
1. Wave packet theory of resonant X-ray scattering
Open this publication in new window or tab >>Wave packet theory of resonant X-ray scattering
2001 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 2001. x, 43 p.
Keyword
RXS, x-ray scattering, wave packets
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-3188 (URN)91-7283-111-1 (ISBN)
Public defence
2001-06-11, 00:00
Note
QC 20100629Available from: 2001-06-08 Created: 2001-06-08 Last updated: 2010-06-30Bibliographically approved

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Ågren, Hans

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