%0 Journal Article
%A Schmidt, Philipp
%A Banszerus, Luca
%A Frohn, Benedikt
%A Blien, Stefan
%A Watanabe, Kenji
%A Taniguchi, Takashi
%A Hüttel, Andreas K.
%A Beschoten, Bernd
%A Hassler, Fabian
%A Stampfer, Christoph
%T Tuning the supercurrent distribution in parallel ballistic graphene Josephson junctions
%J Physical review applied
%V 20
%N 5
%@ 2331-7019
%C College Park, Md. [u.a.]
%I American Physical Society
%M FZJ-2024-03013
%P 054049
%D 2023
%X 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 respective gate-dependent spatial distributions of the real-space current density by employing Fourier and Hilbert transformations of the magnetic-field-induced modulation of the critical current. This approach is fast and does not rely on a symmetric current profile. It is therefore a universally applicable tool, potentially useful for carefully adjusting Josephson junctions.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:001110819700002
%R 10.1103/PhysRevApplied.20.054049
%U https://juser.fz-juelich.de/record/1025624