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Experimental and theoretical investigation of single Cu, Ag, and Au atoms adsorbed on Si(111)-(7x7)

Authors Zhang, C
Chen, G
Wang, KD
Yang, HW
Su, T
Chan, CT
Loy, MMT
Xiao, XD
Issue Date 2005
Source Physical review letters , v. 94, (17), 2005, MAY 6, article number 176104
Summary Using scanning tunneling microscopy and first principles calculations, the adsorption sites of single Cu, Ag, and Au atoms on the Si(111)-(7x7) surface have been systematically investigated and identified. Despite their monovalence, these atoms were found to adsorb at high coordination sites, seeking to saturate the maximum number of dangling bonds. The stable adsorption sites were further observed to be distinctly different in the faulted and unfaulted half unit cells, showing an asymmetry that has never been observed for many other adsorbates.
ISSN 0031-9007
Rights Phys. Rev. Lett. © copyright (2005) American Physical Society. The Journal's web site is located at
Language English
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