Figure 4: Electronic asymmetry of due to surface interaction.
From: Sub-molecular modulation of a 4f driven Kondo resonance by surface-induced asymmetry
(a) Isosurface of the total charge distribution of DyPc2/Cu(001) system. A coupling between the two Pc rings is observed only on one side of the arm. (b) Simulated STM image from −10 to 10 mV. The asymmetry is clearly observed in the ligand states. (c) dI/dV slice at −3 mV (Vset=70 mV, Iset=0.4 nA), with the topographic outline of the molecule shown (black line). The close match between theoretical calculation and the dI/dV slice demonstrates the continuum of the Fano lineshape is due to the ligand states, and the 4f Kondo is modulated through this. The outline of the molecule from the simultaneously taken topographic image is shown in black.
