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TitleSize-dependent icosahedral-to-fcc structure change confirmed in unsupported nanometer-sized copper clusters
Publication TypeJournal Article
Year of Publication1997
AuthorsReinhard, D., Hall B.D., Berthoud P., Valkealahti S., and Monot R.
JournalPhysical Review Letters
Pagination1459 - 1462
Date Published1997
ISSN00319007 (ISSN)
AbstractUnsupported nanometer-sized copper particles in a molecular beam of inert carrier gas have been studied using electron diffraction. A distinct separation in the size distributions of fee and icosahedral particles is observed: Icosahedra occur at sizes well below a diameter limit of 3.8 nm predicted for copper by molecular dynamics simulations, while fee particles occur close to this limit or above. Molecular dynamics simulations have also provided information about particle temperature via thermal expansion and atomic dynamics.

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