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Figure 2 | Nanoscale Research Letters

Figure 2

From: Scanning tunneling spectroscopy of epitaxial graphene nanoisland on Ir(111)

Figure 2

STS near an edge of graphene nanoisland. (a) Atomic resolution CC-STM image of top-left side of the island in Figure 1b (V S  =  0.05 V, Iset = 1 nA). The hexagons denote the honeycomb lattice structure of G. (b) STS spectra measured at nine positions along the line AB across the G edge towards the Ir region. The inset shows the dI/dV signal height at V S  =  1.0 V as a function of distance from the edge. The dI/dV signal decreases from the position of approximately 1.0 nm inside the island towards the edge.

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