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Even-odd effects in the ionization cross sections of [C60]2 and [C60C70] dimers
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Ion Physics.
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2007 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 75, no 5, 051201- p.Article in journal (Refereed) Published
Abstract [en]

We report strong even-odd effects in multiple ionization yields of van der Waals dimers in slowXe30+ + ͓C60͔2͓͑C60C70͔͒ →  ̄ + ͓C60͔2r+͓͑C60C70͔r+͒ electron-transfer collisions as functions of r Յ 7. Thisbehavior may be due to even-odd variations in the sequences of dimer ionization energies as calculated with anelectrostatic model including an electrical fullerene-fullerene contact at the 19a0 center-center separation in͓C60͔2+. Prompt dissociations predominantly yield intact fullerenes ͓C60͔2r+ → C60r1+ + C60r2+ in the same͑r1 = r2, even r͒ or nearby ͑r1 = r2 ± 1, odd r Ͼ 1͒ charge states.

Place, publisher, year, edition, pages
2007. Vol. 75, no 5, 051201- p.
Keyword [en]
fullerenes, quasimolecules, charge exchange, ion-molecule collisions, ionisation, dissociation
National Category
Physical Sciences Engineering and Technology
URN: urn:nbn:se:uu:diva-12709DOI: 10.1103/PhysRevA.75.051201ISI: 000246890400009OAI: oai:DiVA.org:uu-12709DiVA: diva2:40478
Available from: 2008-01-10 Created: 2008-01-10 Last updated: 2016-04-11Bibliographically approved

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Jensen, Jens
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