Growth of Uniquely Small Tin Clusters on Highly Oriented Pyrolytic Graphite
Sumit Beniwal,
Wenrui Chai,
Mengxiong Qiao
et al.
Abstract:Sn clusters have been grown on highly oriented pyrolytic graphite (HOPG) surfaces and investigated by scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), and density functional theory (DFT) calculations. At low Sn coverages ranging from 0.02 to 0.25 ML, Sn grows as small clusters that nucleate uniformly on the terraces. This behavior is in contrast with the growth of transition metals such as Pd, Pt, and Re on HOPG, given that these metals form large clusters with preferential nucleati… Show more
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