STM of Point Defects in GaAs

Here is a set of images coming from the work of the group of Prof. Urban (Research center KFA Jülich).
STM ofdefects in GaAs
Various point defects are clearly visible; bigger defects, too. Below some defects at higher magnification:
Si donorinGaAs
Ga vacancy inGaAs
Si donor in GaAs Ga vacancy in GaAs
   
More information under http://www.kfa-juelich.de/iff/Institute/imf/imf-d.shtml

With frame With frame as PDF

go to 4.2.1 Point Defects in Non-Equilibrium

© H. Föll (Defects - Script)