We use an atomic force microscope (AFM) to manipulate graphene films on a nanoscopic length scale. By means of local anodic oxidation with an AFM we are able to structure isolating trenches into single-layer and few-layer graphene flakes, opening the possi
Figures
Fig. 1. (Color online) Brute-force mechanical manipulation of few-layer graphene flakes on GaAs ((a) and (b)). The number of layers is depicted in the figure. The flake in (a) is approached from the left with the AFM tip. The flake rips apart and rolls up to the top. Due to the strong van-der-Waals interaction between the graphene and the GaAs substrate, the remainder of the flake remains sticking to the GaAs.
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