Science Advances

Supplementary Materials

This PDF file includes:

  • Section S1. Lever-arm parameter
  • Section S2. Resonances before the conductance plateau
  • Section S3. Superconductivity-induced enhancement of the linear conductance below B = 1.4 T and residual B = 0 splitting
  • Section S4. Many-subband regime
  • Section S5. Dependence of the linear conductance on the magnetic field when aligned perpendicular to the axis of the NW
  • Section S6. Temperature dependence of a similar conductance shoulder
  • Section S7. Equivalent circuit and quality factor of the Josephson junction
  • Section S8. Method for fitting the supercurrent
  • Section S9. Evolution jc near the 0−π transition
  • Section S10. Comparison between experimental and theoretical jc
  • Section S11. Superconducting gap
  • Section S12. NRG calculations
  • Fig. S1. Lever-arm parameter calibration, demonstration of Γ tunability by the plunger gate, supercurrent enhancement of the linear conductance, and determination of U.
  • Fig. S2. Unconstrained conductance in a different gate setting.
  • Fig. S3. Absence of plateau for a magnetic field perpendicular to the NW.
  • Fig. S4. Normal-state measurements of a conductance shoulder similar to the one shown in the main text after an accidental gate shift.
  • Fig. S5. Measurement setup and fit example.
  • Fig. S6. Examples of raw supercurrent data and comparison to normal-state linear conductance.
  • Fig. S7. jc extracted from fits to V-dI/dV curves taken at the same gate voltages and temperature as the data in Fig. 3 (A to D) but at different B field.
  • Fig. S8. Comparison between jc linecuts (red line) taken at the white lines in Fig. 3 (E to H) and the experimental data from Fig. 3 (A to D) (black triangles or black line).
  • Fig. S9. Superconducting gap and its magnetic field dependence.
  • Fig. S10. Smearing of charge quantization with Γ.
  • References (3640)

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