Fig. 6: Charge density difference of the Ag-adatom in the CH.
From: Periodic corner holes on the Si(111)-7×7 surface can trap silver atoms
The isosurface lobes (0.003 e/Å3) of charge density difference of the Ag adatom adsorbed on (a) the Si(111)-5×5 and (b) the Si(111)-7×7 unit cell. The blue square shows the CH with the Ag adatom. The top view of the charge density difference on the CH of (c) Si(111)-5×5 and (d) Si(111)-7×7 unit cells. The side views of the enlarged charge density difference in the CH of (e) Si(111)-5×5 and (f) Si(111)-7×7 unit cells. Red and blue lobe represents charge gain and charge depletion respectively. The yellow and light-blue balls represent Si and Ag atoms respectively.
