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Gate-Tunable Enhancement of Supercurrent in Hybrid Planar Josephson Junctions

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Experiment and modelling of InAs/Al planar junctions with patterned holes in the superconducting contacts. Electrostatic depletion reshapes quasiparticle wave functions and enhances finite-field supercurrent, providing a device-engineering route toward better topological-junction parameters.

Key Results

  • Patterned superconducting coverage and gates tune interface wave-function matching.
  • Finite-field supercurrent is enhanced after depleting the patterned region.
  • The work targets subband count and topological-gap optimization; it is not a Majorana or qubit demonstration.

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