Review Article

Toward a Detailed Understanding of Si(111)- Surface and Adsorbed Ge Nanostructures: Fabrications, Structures, and Calculations

Figure 7

Schematic top view of the calculated lowest energy configurations of a Ge atom on the Si(111) surface: (a) Ge at a B2 site and the nearby Si adatom at the position of its original site. (b) Ge at the substitutional S4 site and the Si adatom at a B2 site. (c) Ge atoms substitute for some of the Si adatoms and no atoms are bonded at any of the B2 sites. The bond lengths are shown with unit of Å.
874213.fig.007a
(a)
874213.fig.007b
(b)
874213.fig.007c
(c)