Fig. 6: YSR bands across different domains of the CDW.
a STM topography (constant-current mode with set point 100 pA, 10 mV) of the 51-atom chain. The position of the former 11 (27)-atom chain (Figs. 4h and 5) is indicated in yellow (blue). Different sections of the chain are labeled with A–E. Sections A and B are identical to Fig. 5. b To remove the atomic corrugation of the STM image a was FFT-filtered. Dashed lines encircle the most pronounced CDW distortions in the background. The yellow grids indicate the CDW and the positions of atoms within the chain relative to the CDW: crossings of the lines lie on CDW maxima, upwards pointing triangles on CDW minima. c Stacked constant-height dI/dV spectra (normalized) recorded along a line across the 51-atom chain (set point 700 pA, 5 mV with a modulation of 15 μV). The tip gap Δtip ≈ 1.55 meV is indicated by dashed lines. The dotted lines are located at the same energies as in Fig. 4.
