Fig. 1: Emergence of the zero bias peak in the Pb intercalated 1T-TaS2.
From: Inducing and tuning Kondo screening in a narrow-electronic-band system
a Schematic showing the alternating interlayer stacking of the SD clusters in 1T-TaS2 which results in two inequivalent cleavage planes. b Schematic for the structure of the Type-I surface after evaporating Pb atoms. c Schematic for the structure of the Type-II surface after evaporating Pb atoms. The red, blue and yellow balls in b, c represent the Pb, Ta and S atoms, respectively. d Constant-current STM topography taken on the Type-I surface (Vs = −500 mV, I = 20 pA). e Zoom-in view of the bare Type-I surface and Pb islands (Vs = −500 mV, I = 20 pA). f Differential conductance (dI/dV) spectra taken on the spots indicated by the purple and green arrows shown in e. g Constant-current STM topography taken on the Type-II surface (Vs = −500 mV, I = 30 pA). h Zoom-in view of the bare Type-II surface and Pb islands (Vs = −500 mV, I = 20 pA). i dI/dV spectra taken on the spots indicated by the purple and green arrows in h. The data shown in this figure are taken at T  =  4.3 K. Source data are provided as a Source Data file.
