Figure 3.

Calculated total valence charge density plots of: a Ag reacted 19H-Si(111)-7 × 7 surface with Ag at the H3 site, b isolated Ag atom and c the charge density difference plot by subtracting Figs. 2c and 3b from Fig. 3a. The area is 11.5 × 8 Å, the contours interval is 0.1e Å−3 for Fig. 3a and 3b, and 0.5e Å−3 for Fig. 3c

Lin et al. Nanoscale Research Letters 2009 5:143-148   doi:10.1007/s11671-009-9456-x