Figure 1.

(a) LFM image of the freshly cleaved MoS₂ surface (650 × 650 nm²). Inset: the corresponding topography and (b) the simultaneously recorded C-AFM image, SB is +0.5 V. (c) C-AFM image recorded at −0.5 V. (d) STM topography image (10 × 10 nm²) of a dark circular depression recorded at −1.8 V and 0.4 nA. A low-pass filter has been applied. (e) STM image (3.6 × 3.6 nm²) of a S-vacancy in the outermost sulfur layer. Set point −2.2 V, 1.4 nA. (f) C-AFM image (120 × 120 nm²) recorded at −0.9 V.