Fig. 4
From: Visualization of the local dipole moment at the Si(111) surface using DFT calculations
Optimized surface structures for (a) Si(111)-(\(2 \times 2\)) and (b) Si(111)-(\(7\times 7\)). For the (\(7\times 7\)) structure, the left and right halves correspond to unfaulted and faulted halves, respectively. The positions of typical adatoms and restatoms are indicated by arrows.
