Abstract:
:Starting from the gas phase, small clusters can be produced and deposited with huge flexibility with regard to composition, materials choice and cluster size. Despite many advances in experimental characterization, a detailed morphology of such clusters is still lacking. Here we present an atomic scale observation as well as the dynamical behaviour of ultrasmall germanium clusters. Using quantitative scanning transmission electron microscopy in combination with ab initio calculations, we are able to characterize the transition between different equilibrium geometries of a germanium cluster consisting of less than 25 atoms. Seven-membered rings, trigonal prisms and some smaller subunits are identified as possible building blocks that stabilize the structure.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Bals S,Van Aert S,Romero CP,Lauwaet K,Van Bael MJ,Schoeters B,Partoens B,Yücelen E,Lievens P,Van Tendeloo Gdoi
10.1038/ncomms1887subject
Has Abstractpub_date
2012-06-12 00:00:00pages
897issn
2041-1723pii
ncomms1887journal_volume
3pub_type
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