Disordered Josephson Junctions of d-Wave Superconductors

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dc.creatorLueck, T.
dc.creatorSchwab, P.
dc.creatorEckern, U.
dc.creatorShelankov, A.
dc.date2003-10-10
dc.date.accessioned2026-07-07T02:54:08Z
dc.date.available2026-07-07T02:54:08Z
dc.descriptionWe study the Josephson effect between weakly coupled d-wave superconductors within the quasiclassical theory, in particular, the influence of interface roughness on the current-phase relation and the critical current of mirror junctions and $45^\circ$ asymmetric junctions. For mirror junctions the temperature dependence of the critical current is non-monotonic in the limit of low roughness, but monotonic for very rough interfaces. For $45^\circ$ asymmetric junctions with a linear dimension much larger than the superconducting coherence length we find a $\sin(2ϕ)$-like current-phase relation, whereas for contacts on the scale of the coherence length or smaller the usual $\sinϕ$-like behavior is observed. Our results compare well with recent experimental observations.
dc.description10 pages, 12 figures; accepted for publication in Phys. Rev. B
dc.identifierhttps://arxiv.org/abs/cond-mat/0310250
dc.identifierhttp://arxiv.org/abs/cond-mat/0310250
dc.identifierPhys. Rev. B 68, 174524 (2003)
dc.identifierdoi:10.1103/PhysRevB.68.174524
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22425
dc.subjectSuperconductivity
dc.titleDisordered Josephson Junctions of d-Wave Superconductors
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