This PDF file includes:

• fig. S1. Resistivity, dc magnetic susceptibility measurement, and optical microscopy image of (Li_0.8Fe_0.2)OHFeSe single crystal.
• fig. S2. Topographic image and STS taken on the as-cleaved Li_0.8Fe_0.2OH surface.
• fig. S3. Spatial distribution of the superconducting gap on the as-cleaved FeSe surface.
• fig. S4. Additional topographic images of the FeSe surface after K dosing.
• fig. S5. Unnormalized dI/dV spectra at the K_c near Lifshitz transition.
• fig. S6. dI/dV maps and corresponding FFTs taken in an area of 100 × 100 nm² of the FeSe-terminated surface at K_c = 0.124 ML.

Download PDF