Vibrational structure in the optical response of small Li-cluster ions

The optical response of Li4+ and Li7+ exhibits three large maxima at photon energies between 1.9 and 3.6 eV, on which a fine structures could be resolved that has a peak to peak distance of about 30–40 meV. A high level ab initio calculation of Li4+ shows that this feature is due to vibrational stru...

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Bibliographic Details
Published in:The Journal of chemical physics 2002-08, Vol.117 (8), p.3711-3714
Main Authors: Ellert, Christoph, Schmidt, Martin, Haberland, Hellmut, Veyret, Vincent, Bonačić-Koutecký, Vlasta
Format: Article
Language:English
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Summary:The optical response of Li4+ and Li7+ exhibits three large maxima at photon energies between 1.9 and 3.6 eV, on which a fine structures could be resolved that has a peak to peak distance of about 30–40 meV. A high level ab initio calculation of Li4+ shows that this feature is due to vibrational structure of the excited electronic state. It is pointed out that the lifetime of the excited states exhibits a dramatic shortening with increasing particle size.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.1493193