Energetics and dynamics of Si ad-dimers on Si(001)

Zhenyu Zhang, Fang Wu, H.J.W. Zandvliet, B. Poelsema, H. Metiu, M.G. Lagally

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Abstract

The energetics and dynamics of Si ad-dimers on Si(001) have been investigated by total-energy calculations and scanning tunneling microscopy. Several dimer configurations and a thermally activated rotational mode of the dimer on top of a dimer row are theoretically predicted and experimentally identified. The frequency of occurrence of the different dimer configurations suggests a likely pathway for monomer diffusion.
Original languageEnglish
Pages (from-to)3644-3647
Number of pages4
JournalPhysical review letters
Volume74
Issue number18
DOIs
Publication statusPublished - 1995

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