Y. Ozaki et al., BREATHING VIBRATION OF AR CLUSTERS ANALYZED BY MOLECULAR-DYNAMICS CALCULATION - CLUSTER-SHAPE DEPENDENCE OF THE MODE-SEPARATION, Science Reports of the Research Institutes, Tohoku University, Series A: Physics, Chemistry, and Metallurgy, 39(1), 1993, pp. 73-75
The vibrational motion of Ar clusters (Ar(n), n=20 and 30) having isom
ers in a variety of shapes was simulated by use of the molecular dynam
ics method and the mode-separation of the breathing vibration from the
quadruple spheroidal vibration was investigated. It was found that th
ese modes of highly spherical isomers were almost fully separated from
each other, while coupling between these modes were significant in no
n-spherical isomers. The relation between the cluster shape and the mo
de-separation was elucidated.