PRODUCTION OF DIAMOND-LIKE CARBON-FILMS THROUGH RANDOM COMPACT CLUSTER STACKING

Carbon thin films exhibiting a different structure have been obtained using low-energy neutral-cluster beam deposition. The first-order Rama n scattering of such materials exhibits some characteristic features r elated to the phonon density of states of diamond. A careful analysis shows that the electronic structure is not explained by a classical ra ndom network model such as Polk's model and an alternative film struct ure is proposed. In addition, the correlation between the free-cluster properties and the film properties seems to confirm the existence of the fullerenes in the 20-32-atom size range.