TY - JOUR
T1 - Phase diffusion in graphene-based Josephson junctions
AU - Borzenets, I. V.
AU - Coskun, U. C.
AU - Jones, S. J.
AU - Finkelstein, G.
PY - 2011/9/23
Y1 - 2011/9/23
N2 - 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 ∼2K, 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.
AB - 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 ∼2K, 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.
UR - http://www.scopus.com/inward/record.url?scp=80053125187&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-80053125187&origin=recordpage
U2 - 10.1103/PhysRevLett.107.137005
DO - 10.1103/PhysRevLett.107.137005
M3 - RGC 21 - Publication in refereed journal
SN - 0031-9007
VL - 107
JO - Physical Review Letters
JF - Physical Review Letters
IS - 13
M1 - 137005
ER -