Interatomic scattering in energy dependent photoelectron spectra of Ar clusters

Journal Article · Mon Sep 28 00:00:00 EDT 2015 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4931644· OSTI ID:22489641

Patanen, M.; Benkoula, S.; Nicolas, C.; Goel, A. ^[1]; Antonsson, E. ^[1]; Neville, J. J. ^[1]

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1. Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex (France)

Soft X-ray photoelectron spectra of Ar 2p levels of atomic argon and argon clusters are recorded over an extended range of photon energies. The Ar 2p intensity ratios between atomic argon and clusters’ surface and bulk components reveal oscillations similar to photoelectron extended X-ray absorption fine structure signal (PEXAFS). We demonstrate here that this technique allows us to analyze separately the PEXAFS signals from surface and bulk sites of free-standing, neutral clusters, revealing a bond contraction at the surface.

• OSTI ID: 22489641
• Journal Information: Journal of Chemical Physics, Vol. 143, Issue 12; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ABSORPTION
ARGON
ENERGY DEPENDENCE
FINE STRUCTURE
OSCILLATIONS
PHOTOELECTRON SPECTROSCOPY
PHOTONS
SCATTERING
SIGNALS
SOFT X RADIATION
SURFACES