Science Advances

Supplementary Materials

This PDF file includes:

  • note S1. Crystal structures and electron diffraction patterns of PbTaSe2.
  • note S2. Spin-decomposed surface band structures of PbTaSe2.
  • note S3. The 2 × 2 superstructure on a Se-terminated surface.
  • note S4. Verification of helical spin polarization in TSSs by QPI imaging.
  • note S5. Superconducting gap on a Se-terminated surface.
  • note S6. Single–s-wave gap and two–s-wave gap fitting.
  • note S7. Comparison of normalized differential conductance at normal and superconducting states on a Pb-terminated surface.
  • note S8. Upper critical field, lattice parameter of Abrikosov lattice, and normalized zero bias conductance of a vortex.
  • note S9. Spatial distribution of the superconducting gap on a Pb-terminated surface.
  • note S10. Topographic images and parameters of differential conductance maps on a Pb-terminated surface.
  • note S11. Setpoint effect of normalized differential conductance maps on a Pb-terminated surface.
  • note S12. Raw Fourier transform of normalized differential conductance maps on a Pb-terminated surface.
  • note S13. Differential conductance map at Fermi energy.
  • fig. S1. Electron diffraction patterns along 001 and 110 projection.
  • fig. S2. Projection of the spin polarizations of bands contributed from the surface atoms.
  • fig. S3. The simulated surface structure on the Se-terminated surface.
  • fig. S4. Spin-dependent QPI.
  • fig. S5. Temperature dependence of the superconducting gap.
  • fig. S6. BCS fitting of superconducting tunneling spectrum.
  • fig. S7. Normalized differential conductance taken on Pb-terminated surface.
  • fig. S8. Magnetic field dependence of superconducting vortex lattice and vortex bound states.
  • fig. S9. Homogenous superconducting gap on a Pb-terminated surface.
  • fig. S10. Topographic images of differential conductance maps on the Pb-terminated surface.
  • fig. S11. Bias independence of LDOS mapping and QPI imaging.
  • fig. S12. Raw data FFT of normalized differential conductance maps.
  • fig. S13. Visualization of QPI at Fermi energy.

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Other Supplementary Material for this manuscript includes the following:

  • movie S1 (.mpg format). Normal-state QPI maps taken on a Pb-terminated surface.

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