Extended Data Fig. 7: Point STS taken at different positions of different size of QADs in PtTe2.
a, c, e, STM image for hexamer, decamer and pentadecamer. V1 marks the vacancies at the corners, V2 marks the second vacancies at the edges of the QADs (counting from the corners), V3 marks the central vacancies at the edges of pentadecamer, V4 marks the inner vacancies and cross marks the center of pentadecamer. The setpoint is VS = − 2.5 V, It = 300 pA. b, d, f, Schematic illustration for the potential wells and calculation units for hexamer, decamer and pentadecamer. Dark blue marks the vacancy center and light blue marks the surrounding Pt atoms. Red marks the calculation units for taking spectral functions. g-i, Point dI/dV spectra taken at labelled vacancies, QAD center and bare surface. The dashed line indicates the extra edge state at V2 and V3. j, l, n,dI/dV map for the extra state at edges for each QAD. The setpoint is marked at bottom right. k, m, o, Simulation of the corresponding edge state at the energy marked at bottom right.
