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Preferential site occupancy observed in coexpanded argon-krypton clusters

Lundwall, M. ; Bergersen, H. ; Lindblad, A. ; Ohrwall, G. ; Tchaplyguine, Maxim LU ; Svensson, S. and Bjorneholm, O. (2006) In Physical Review A (Atomic, Molecular and Optical Physics) 74(4).
Abstract
Free heterogeneous argon-krypton clusters have been produced by coexpansion and investigated by means of x-ray photoelectron spectroscopy. By examining cluster surface and bulk binding energy shifts, relative intensities, and peak widths, we show that in the mixed argon-krypton clusters the krypton atoms favor the bulk and argon atoms are pushed to the surface. Furthermore, we show that krypton atoms in the surface layer occupy high-coordination sites and that heterogeneous argon-krypton clusters produced by coexpansion show the same surface structure as argon host clusters doped with krypton. These observations are supported by site-dependent calculations of chemical shifts.
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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A (Atomic, Molecular and Optical Physics)
volume
74
issue
4
publisher
American Physical Society
external identifiers
  • wos:000241723100113
  • scopus:33750487160
ISSN
1050-2947
DOI
10.1103/PhysRevA.74.043206
language
English
LU publication?
yes
id
a855c756-0fd1-4d61-86ff-1dd0b5198f89 (old id 378277)
date added to LUP
2016-04-01 12:27:24
date last changed
2020-08-12 03:25:26
@article{a855c756-0fd1-4d61-86ff-1dd0b5198f89,
  abstract     = {Free heterogeneous argon-krypton clusters have been produced by coexpansion and investigated by means of x-ray photoelectron spectroscopy. By examining cluster surface and bulk binding energy shifts, relative intensities, and peak widths, we show that in the mixed argon-krypton clusters the krypton atoms favor the bulk and argon atoms are pushed to the surface. Furthermore, we show that krypton atoms in the surface layer occupy high-coordination sites and that heterogeneous argon-krypton clusters produced by coexpansion show the same surface structure as argon host clusters doped with krypton. These observations are supported by site-dependent calculations of chemical shifts.},
  author       = {Lundwall, M. and Bergersen, H. and Lindblad, A. and Ohrwall, G. and Tchaplyguine, Maxim and Svensson, S. and Bjorneholm, O.},
  issn         = {1050-2947},
  language     = {eng},
  number       = {4},
  publisher    = {American Physical Society},
  series       = {Physical Review A (Atomic, Molecular and Optical Physics)},
  title        = {Preferential site occupancy observed in coexpanded argon-krypton clusters},
  url          = {http://dx.doi.org/10.1103/PhysRevA.74.043206},
  doi          = {10.1103/PhysRevA.74.043206},
  volume       = {74},
  year         = {2006},
}