Figure 2 (IMAGE)

Peking University

Figure 2

Caption

Figure 2. ZEBSs at the ends of a short atomic line defect (about 8 Te/Se atoms in length). a, An STM topographic image of the short 1D atomic line defect. b, Spatial zero-energy mapping. c, Tunnelling spectra measured at the upper end and in the middle of the atomic line defect. d, Tunnelling spectra taken along the red arrow direction in a. e, The temperature evolution of the ZEBS at the top end of the line defect. The coloured curves are normalized tunnelling spectra and the grey curves are the 4.2-K spectra convoluted by the Fermi-Dirac distribution function at higher temperatures. f, The tunnelling barrier dependence of the ZEBS at the top end of the line defect.

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School of Physics, Peking University

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