Article,
Binding energies of neutral silicon clusters
Chemical Physics Letters, 324 (5-6): 365 - 372 (2000)
DOI: DOI: 10.1016/S0009-2614(00)00622-9
Abstract
The binding energies per atom of neutral SiN-cluster size distributions
with mean cluster sizes from to have been calorimetrically determined.
The measured binding energies can be explained by the existence of
two different classes of cluster isomers: One class is characterized
by binding energies proportional to N-1/3, indicating compact spherical-like
geometries. The other class has distinctly reduced binding energies,
which do not show a dependence on the cluster size in the investigated
size range. The binding energies of the calorimetrically investigated
silicon clusters are discussed together with experiments on smaller
silicon clusters with respect to the transition from bulk-like to
molecular structures.
