Beilstein J. Nanotechnol.2011,2, 1–14, doi:10.3762/bjnano.2.1
tunneling spectroscopy (STS). On magnesium oxide, different color centers, i.e., F0, F+, F2+ and divacancies, have different effects on the contact potential. These differences enabled classification and unambiguous differentiation by KPFM. True atomic resolution shows the topography at line defects in
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Figure 1:
Model of a binary oxide surface. Point defects such as color centers, which are preferably situated...