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Topological Superconductivity in a Phase-Controlled Josephson Junction

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HgTe/Al planar-junction experiment in which a zero-bias tunnelling feature appeared over a phase interval that broadened with in-plane magnetic field, consistent with a phase-controlled topological transition.

Key Results

  • Phase difference and in-plane field jointly control the zero-bias region.
  • Tunnelling conductance is measured at the junction edge.
  • The observations are consistent with modelled Majorana-bound-state phenomenology but do not establish non-Abelian statistics.

Graph View