Theoretical Study of Differences between Surface and Bulk Electronic States in Cu Clusters
The size-dependent electronic structures of metal clusters Cun (n=2-20) have been calculated using density functional theory method. The results reveal that their electronic properties are almost the same as bulk material if the cluster size larger than a critical value. The properties can be understood by a surface-noncrystalline-layer model that composed of an interior crystalline-like core and an outer surface noncrystalline layer.
Chunli BAI, Sishen XIE, Xing ZHU
Y. Dai et al., "Theoretical Study of Differences between Surface and Bulk Electronic States in Cu Clusters", Solid State Phenomena, Vols. 121-123, pp. 1189-1192, 2007