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Title: Reactive Co magic cluster formation on Si(111)-(7×7)
Authors: Zilani, M.A.K. 
Sun, Y.Y. 
Xu, H. 
Liu, L. 
Feng, Y.P. 
Wang, X.-S. 
Wee, A.T.S. 
Issue Date: 15-Nov-2005
Citation: Zilani, M.A.K., Sun, Y.Y., Xu, H., Liu, L., Feng, Y.P., Wang, X.-S., Wee, A.T.S. (2005-11-15). Reactive Co magic cluster formation on Si(111)-(7×7). Physical Review B - Condensed Matter and Materials Physics 72 (19) : -. ScholarBank@NUS Repository.
Abstract: Cobalt-induced magic clusters have been grown on Si(111)-(7×7). In situ scanning tunneling microscopy studies show that the clusters are off-center in the 7×7 half-unit-cell breaking the local threefold symmetry, and thereby distinguishing this system from other group-III magic clusters. Another unique feature of these clusters is that they are accompanied by voids created by two missing adatoms. Supported by first-principles total energy calculations, we propose a model to explain the atomic structure and formation mechanism of these clusters. The reactive nature of Co leads to the liberation of substrate Si atoms which eventually bond with Co to form the clusters. © 2005 The American Physical Society.
Source Title: Physical Review B - Condensed Matter and Materials Physics
ISSN: 10980121
DOI: 10.1103/PhysRevB.72.193402
Appears in Collections:Staff Publications

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