A symmetry adapted approach to vibrational excitations in atomic clusters
A. Frank, R. Lemus, R. Bijker, F. Perez-Bernal, J. M. Arias
Abstract
An algebraic method especially suited to describe strongly anharmonic vibrational spectra in molecules may be an appropriate framework to study vibrational spectra of Na+n clusters, where nearly flat potential energy surfaces and the appearance of close lying isomers have been reported. As an illustration we describe the model and apply it to the Be4, H3+, Be3 and Na3+ clusters.
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