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

I. V. Borzenets; U. C. Coskun; H. Mebrahtu; G. Finkelstein

doi:10.1109/tasc.2012.2198472

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arXiv · 1112.1987

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

I. V. Borzenets·U. C. Coskun·H. Mebrahtu·G. Finkelstein

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Abstract

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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I. V. Borzenets, U. C. Coskun, H. Mebrahtu, G. Finkelstein. 2011-12-09. Pb-graphene-Pb Josephson junctions: characterization in B field. https://doi.org/10.1109/tasc.2012.2198472

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