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
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go to 4.2.1 Point Defects in Non-Equilibrium

© H. Föll (Defects - Script)