Abstract
Superconductor-graphene-superconductor (SGS) junction provides a unique platform to study relativistic electrodynamics of Dirac fermions in graphene combined with proximity-induced superconductivity. We report the observation of the Josephson effect in proximity-coupled superconducting junctions of graphene in contact with () electrodes for temperatures as high as 4.8 K, with a large value of (255 V). This demonstrates that SGS junction would facilitate the development of the superconducting quantum information devices and superconductor-enhanced phase-coherent transport of graphene.
- Received 24 September 2010
DOI:https://doi.org/10.1103/PhysRevB.83.094503
©2011 American Physical Society