Jc. Poulin et al., SCANNING-TUNNELING-MICROSCOPY OBSERVATION OF GIANT PALLADIUM-561 CLUSTERS, Journal of molecular catalysis. A, Chemical, 95(2), 1995, pp. 109-113
STM observation showed giant palladium-561 clusters which are larger i
n size than observed earlier by TEM and HREM studies. The difference i
s presumably due to the ligand shell of the clusters, which is invisib
le to electron microscopy.