Impurity Decoration for Crystal Shape Control: C60 on Ag(111)

dc.contributor.authorStasevich, T. J.
dc.contributor.authorTao, Chenggang
dc.contributor.authorCullen, William G.
dc.contributor.authorWilliams, Ellen D.
dc.contributor.authorEinstein, Theodore L.
dc.date.accessioned2024-03-11T15:55:19Z
dc.date.available2024-03-11T15:55:19Z
dc.date.issued2009
dc.description.abstractThe decoration of hexagonal Ag/Ag(111) monolayer islands by chains of C60, observed via STM at 300 K, dramatically changes the nanocrystalline shape and fluctuations of the islands. We tune coverage so that a single chain of C60 fully decorates each Ag island boundary, forming a closed circular “necklace.” We model the C60-induced rounding in terms of competing energetic and entropic effects. We thereby characterize the decorated-step fluctuations and estimate the C60-Ag and C60?C60 attractions to be ?0.13 and ?0.03??eV, respectively. Generalizations of our model show that decorating molecules of both circular and rectangular surface-projected symmetry will similarly lower the energy of fully kinked boundaries, leading to corner rounding and reorientations by 30° on (111) surfaces and 45° on (100) surfaces.
dc.description.urihttps://doi.org/10.1103/PhysRevLett.102.085501
dc.identifierhttps://doi.org/10.13016/ah0i-2evv
dc.identifier.citationStasevich, Tao, et al, Impurity Decoration for Crystal Shape Control: C60 on Ag(111). Physical Review Letters, 102, 2009.
dc.identifier.urihttp://hdl.handle.net/1903/32325
dc.publisherAmerican Physical Society
dc.titleImpurity Decoration for Crystal Shape Control: C60 on Ag(111)
dc.typeArticle

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