Theoretical study on clusters of magnesium†
Abstract
The energetic and structural properties of neutral magnesium clusters Mgn (n
= 2 to 22 and selected clusters
up to 309) are investigated by means of density functional theory. The small clusters of sizes n
= 4, 10 and 20 show enhanced stability, which is in line with the predictions of the shell model. Larger clusters were selected
according to the principle of geometric shell closings; different kinds of shapes and packing types were considered. Among the cluster sizes studied, icosahedral packings are most favourable, which supports the experimental findings. Weak evidence is found for