Periodicity and atomic ordering in nanosized particles of crystals

Valeri Petkov, Nick Bedford, Marc R. Knecht, Michael G. Weir, Richard M. Crooks, Wenjie Tang, Graeme Henkelman, Anatoly Frenkel

Research output: Contribution to journalArticlepeer-review

69 Scopus citations


Evidence is presented that nanosized particles of crystals do not necessarily adopt a periodic atomic structure as their bulk counterparts do and/or as predicted by theory. As an example, 1.6-nm Au particles grown inside a dendrimeric host are studied and found to possess a heavily disordered, metallic glass-type structure. The nanoparticle's structure evolves toward the face-centered-cubic-type lattice of bulk Au only upon removal of solvent. The results show that periodicity, which rules the structure and properties of bulk crystals, is less of a constraint at the nanoscale level and, therefore, may be used as tunable parameter in nanotechnology research.

Original languageEnglish
Pages (from-to)8907-8911
Number of pages5
JournalJournal of Physical Chemistry C
Issue number24
StatePublished - Jun 19 2008


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