Phase diffusion in graphene-based Josephson junctions.
Abstract
We report on graphene-based Josephson junctions with contacts made from lead. The
high transition temperature of this superconductor allows us to observe the supercurrent
branch at temperatures up to ∼2 K, at which point we can detect a small, but nonzero,
resistance. We attribute this resistance to the phase diffusion mechanism, which has
not been yet identified in graphene. By measuring the resistance as a function of
temperature and gate voltage, we can further characterize the nature of the electromagnetic
environment and dissipation in our samples.
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https://hdl.handle.net/10161/19629Published Version (Please cite this version)
10.1103/physrevlett.107.137005Publication Info
(2011). Phase diffusion in graphene-based Josephson junctions. Physical review letters, 107(13). pp. 137005. 10.1103/physrevlett.107.137005. Retrieved from https://hdl.handle.net/10161/19629.This is constructed from limited available data and may be imprecise. To cite this
article, please review & use the official citation provided by the journal.
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Show full item recordScholars@Duke
Gleb Finkelstein
Professor of Physics
Gleb Finkelstein is an experimentalist interested in physics of quantum nanostructures,
such as Josephson junctions and quantum dots made of carbon nanotubes, graphene, and
topological materials. These objects reveal a variety of interesting electronic properties
that may form a basis for future quantum devices.
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