Pb-graphene-Pb Josephson junctions: characterization in B field

Details Pb-graphene-Pb Josephson junctions: characterization in B field Pb-graphene-Pb Josephson junctions: characterization in B field

2011-12-09

arxiv.org/abs/1112.1987v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 5 figures

Scientific paper

We fabricate superconductor-graphene-superconductor Josephson junctions with superconducting regions made of lead (Pb). The critical current through grapehene may be modulated by external magnetic field; the resulting Fraunhofer interference pattern shows several periods of oscillations, indicating that the junction is uniform. Deviations from the perfect Fraunhofer pattern are observed, and their cause is explained by a simulation that takes into account the sample design.

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