Extended Data Fig. 8: Point STS data of 3V3O2, hexamer and trimer.
a-c, STM image for 3V3O2, hexamer and trimer. V1 marks the vacancy at the corners, V2 marks the vacancy at the edges and cross marks the center where the spectra were taken. The setpoint is VS = − 2.5 V, It = 300 pA. d, Comparison between the STS curves taken at the center of 3V3O2, hexamer and trimer. e, Comparison between the STS curves taken at the corners of 3V3O2, hexamer and trimer. f, Comparison between the STS curves taken at the edge of 3V3O2, hexamer and trimer. The spectra taken on the bare surface are shown in red as a reference curve.
