Table 2 Voronoi partial charges at the DB sites for diffetential nominal charge-states of the DB pairs.

From: Tunneling spectroscopy of close-spaced dangling-bond pairs in Si(001):H

 

line (Q)

cross (Q)

site 1

site 2

site 1

site 2

0−

−0.01

−0.11

−0.01

−0.11

00

0.00

0.00

0.00

0.00

+−

0.07

−0.07

0.13

−0.10

+0

0.10

0.04

0.13

0.01

++

0.10

0.10

0.13

0.13

  1. As can be appreciated by the low partial charges, the DB states are not strictly localized to the DB sites in the surface, but have significant tails into the bulk region.