Abstract
The evolution of the morphology of gold clusters grown in nanometer-sized pits on graphite at T=623 K was investigated for a broad range of cluster sizes. We observed a transition from a three-dimensional growth for small cluster sizes ( 104 atoms). With scanning tunneling microscopy we determined the facet size and shape together with the cluster height for more than 100 individual clusters. Based on this data, we developed a description of the size-dependent cluster morphology which includes both growth regimes.
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