TY  - JOUR
AU  - Schmidt, Philipp
AU  - Banszerus, Luca
AU  - Frohn, Benedikt
AU  - Blien, Stefan
AU  - Watanabe, Kenji
AU  - Taniguchi, Takashi
AU  - Hüttel, Andreas K.
AU  - Beschoten, Bernd
AU  - Hassler, Fabian
AU  - Stampfer, Christoph
TI  - Tuning the supercurrent distribution in parallel ballistic graphene Josephson junctions
JO  - Physical review applied
VL  - 20
IS  - 5
SN  - 2331-7019
CY  - College Park, Md. [u.a.]
PB  - American Physical Society
M1  - FZJ-2024-03013
SP  - 054049
PY  - 2023
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001110819700002
DO  - DOI:10.1103/PhysRevApplied.20.054049
UR  - https://juser.fz-juelich.de/record/1025624
ER  -