Photon energy dependence of fragmentation of small argon clusters

Gisselbrecht, Mathieu (author): Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH

Lindgren, Andreas (author): Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH

Tchaplyguine, Maxim (author): Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory

Burmeister, F (author)

Ohrwall, G (author)

Lundwall, M (author)

Lundin, Magnus (author): Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory

Marinho, RRT (author)

de Brito, AN (author)

Svensson, S (author)

Bjorneholm, O (author)

Ristinmaa Sörensen, Stacey (author): Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH

(creator_code:org_t)

AIP Publishing, 2005
2005
English.
In: Journal of Chemical Physics. - : AIP Publishing. - 0021-9606 .- 1089-7690. ; 123:19

Related links:: http://dx.doi.org/10...; show more...; https://lup.lub.lu.s...; https://doi.org/10.1...; show less...

Abstract Subject headings

Photofragmentation of small argon clusters with size below ten atoms is reported. In this size range significant modifications from the electronic properties and geometry take place. When tuning the photon energy through the argon 2p edge, the fragmentation pattern is changed. Specifically, cation dimer production is enhanced at the 2p(3/2)-> 4s resonance, while above the 2p edge almost complete atomization is observed. In both cases, the widths of the peaks in the mass spectra indicate that a large amount of kinetic energy is imparted to the fragment due to the formation of multiply charged clusters. A model based on "Coulomb explosion"-charge separation, simply resulting in a complete atomization of the cluster with no dependence on the photon energy-is insufficient to explain the observed photofragmentation of small clusters.

By the author/editor: Gisselbrecht, Ma ...; Lindgren, Andrea ...; Tchaplyguine, Ma ...; Burmeister, F; Ohrwall, G; Lundwall, M; show more...; Lundin, Magnus; Marinho, RRT; de Brito, AN; Svensson, S; Bjorneholm, O; Ristinmaa Sörens ...; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Atom and Molecul ...

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