Figure 4
Differential conductance spectra (dI/dV) (Ubias = −2.42 V, Iset = 2.42 nA) over fullerenes, (top) in the inner hexagon and (bottom) in the outer ring of an 8/3 approximant. The insets show enlargements of the spectra in the voltage range around the LUMOs. (Left-hand side) Identification of the respective fullerenes in the STM image (6 nm × 6 nm, Ubias = −2.03 V, Iset = 0.28 nA). |