Nonmonotonic temperature dependence of critical current in diffusive d-wave junctions
arXiv:cond-mat/0605373 · doi:10.1103/PhysRevB.73.140504
Abstract
We study the Josephson effect in D/I/DN/I/D junctions, where I, DN and D denote an insulator, a diffusive normal metal and a d-wave superconductor, respectively.The Josephson current is calculated based on the quasiclassical Green's function theory with a general boundary condition for unconventional superconducting junctions. In contrast to s-wave junctions, the product of the Josephson current and the normal state resistance is enhanced by making the interface barriers stronger. The Josephson current has a nonmonotonic temperature dependence due to the competition between the proximity effect and the midgap Andreev resonant states.
5 pages, 4 figures
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Cited by in corpus (6)
- The role of interface transparency and spin-dependent scattering in diffusive ferromagnet/superconductor heterostructures
- Theory of Josephson effect in unconventional superconducting junctions with diffusive barriers
- Theory of Josephson effect in chiral p-wave superconductor / diffusive normal metal / chiral p-wave superconductor junctions
- Angular dependence of Josephson currents in unconventional superconducting junctions
- Spin and Charge Currents in SNS Josephson Junction with f-wave Pairing Symmetry
- A quantitative model for IcR product in d-wave Josephson junctions