| 
|
Photocurrent from different spatial regions
GaAs(110)
Photocurrent for Ein = -4.0 eV and
k|| = 0.6 Å-1, calculated with free
final states. The radius represents the intensity.
The polar plots are normalized within each row.
The partial currents in the middle and right colums arise
from the middle and outer area, respectively, around the atomic
positons, as indicated in the charge density plot below.
Charge density
Contour plot of a charge density in a plane through
the uppermost As and Ga atoms. For details see
here.
The radii seperating the areas are 0.1 Å and
0.3 Å.
 ARUPS probes the bonding region.
High kinetic energies cause an effective
localization at the cores.
|
