Schmidt, Philipp and Banszerus, Luca and Frohn, Benedikt and Blien, Stefan and Watanabe, Kenji and Taniguchi, Takashi and Huettel, Andreas K. and Beschoten, Bernd and Hassler, Fabian and Stampfer, Christoph (2023) Tuning the supercurrent distribution in parallel ballistic graphene Josephson junctions. PHYSICAL REVIEW APPLIED, 20 (5): 054049. ISSN 2331-7019
Full text not available from this repository. (Request a copy)Abstract
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.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Andreas K. Hüttel |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Apr 2024 06:29 |
| Last Modified: | 05 Apr 2024 06:29 |
| URI: | https://pred.uni-regensburg.de/id/eprint/60633 |
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