“…From the respective data in figure 2, we see that the contrast reversal in the TO-AFM images (figures 2(a), (c)) is complemented by a more complex behavior in the corresponding current signals (figures 2(b), (d)). For the analysis, let us start by noting that the appearance of figure 2(c) matches the most commonly observed contrast for the NC-AFM imaging of graphite, which has been well understood [16,19,35,44,[56][57][58][59][60]. Therefore, we can make an unambiguous assignment of the various lattice sites in figure 2(c), with the hillocks reflecting the positions of the hollow sites while the A-and B-atoms are located at minima (cross-section below figure 2(c)).…”