Fig. 3
From: Visualization of the local dipole moment at the Si(111) surface using DFT calculations
(Color Online) Normalized in-plane dipole moment distribution of (a) the Si(111)-(\(2\times 2\)) and (b) the Si(111)-(\(7\times 7\)) surfaces. Gray circles represent the locations of atoms of top 1BL. The corresponding normalized line profiles along the red dashed lines in (a, c) are shown in (b, d), respectively.
