Fig. 2: Detailed electronic structure of edge state in GNRs/MgO.
From: Systematic modulation of charge and spin in graphene nanoribbons on MgO
Stack plots of dI/dV spectroscopy curves taken along the chiral edge of (3,1,8)-GNRs with L = 6 (a) and L = 11 (b). Insets show 3 nm wide topography images (Vb = 0.5 V, It = 50 pA). Dotted yellow lines indicate the positions where spectroscopy was retrieved. Spectroscopy parameters: stabilization Vb = 0.5 V and It = 200 pA, Vmod = 1 mV rms, T = 1.2 K and 4.3 K for (a) and (b) respectively. nth order QW states are labelled as QWn. Reddish dashed lines are a guide to the eye of the position dependent energy of their associated Franck-Condon resonances (RmQWn: mth replica of the nth QW state, see Supplementary Fig. 6).
