Science Advances

This PDF file includes:

• Section S1. DFT calculation of magnetic contrast
• Section S2. SP-STM study of the magnetic structure of Fe_1.06Te
• Section S3. Incommensurate order in Fe_1.16Te
• Section S4. Manipulating the surface excess Fe concentration
• Section S5. Alternative method to determine sample spin polarization
• Section S6. Model for the magnetic structure at x = 0.12
• Section S7. Model for the magnetic structure at x = 0.2
• Fig. S1. Spin-polarized imaging at low excess iron concentrations x < 0.12.
• Fig. S2. Spin-polarized imaging at high excess iron concentrations x > 0.12.
• Fig. S3. Manipulation of surface excess iron with aggressive tunneling parameters.
• Fig. S4. Manipulation of surface excess iron with moderate tunneling parameters.
• Fig. S5. Manipulating surface magnetic order.
• Fig. S6. Extracting surface spin polarization.
• Fig. S7. Simulated SP-STM images for x = 0.12.
• Table S1. Crystal structure of Fe_1+xTe at different excess iron concentrations x.
• References (32–37)

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