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 language | English |
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Pages (from-to) | 3644-3647 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 74 |
Issue number | 18 |
DOIs | |
Publication status | Published - 1995 |