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Tuning the supercurrent distribution in parallel ballistic graphene Josephson junctions

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Schmidt, Philipp ; Banszerus, Luca ; Frohn, Benedikt ; Blien, Stefan ; Watanabe, Kenji ; Taniguchi, Takashi ; Hüttel, Andreas K. ; Beschoten, Bernd ; Hassler, Fabian ; Stampfer, Christoph
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Date of publication of this fulltext: 23 Nov 2023 10:39


We report on a ballistic and fully tunable Josephson-junction system consisting of two parallel ribbons of graphene in contact with superconducting molybdenum-rhenium. By electrostatic gating of the two individual graphene ribbons, we gain control over the real-space distribution of the superconducting current density, which can be continuously tuned between the two ribbons. We extract the ...


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