Theory of Josephson effect in unconventional superconducting junctions with diffusive barriers
arXiv:cond-mat/0611133 · doi:10.1103/PhysRevB.75.094514
Abstract
We study theoretically the Josephson effect in junctions based on unconventional superconductors with diffusive barriers, using the quasiclassical Green's function formalism. Generalized boundary conditions at junction interfaces applicable to unconventional superconductors are derived by calculating a matrix current within the circuit transport theory. Applying these boundary conditions, we have calculated the Josephson current in structures with various pairing symmetries. A number of predictions are made: (a) nonmonotonic temperature dependence in d-wave superconductor/diffusive normal metal/d-wave superconductor (D/DN/D) junctions, (b) anomalous current-phase relation in -wave superconductor/diffusive normal metal/% -wave superconductor (P/DN/P) junctions, (c) second harmonics in D/DN/D and P/DN/P junctions, (d) a double peak structure of the critical current in D/DF/D junctions, (e) enhanced Josephson current by the exchange field in S/DF/P junctions. We have also investigated peculiarities of the Josephson coupling in D/DF/D, P/DF/P and S/DF/P junctions. An oscillatory behavior of the supercurrent and the second harmonics in the current-phase relation are studied as a function of the length of the diffusive ferromagnet.
arXiv comment15 pages, 14 figures, long version of Phys. Rev. B 73, 140504(R) (2006)(cond-mat/0605373)
References in corpus (27)
- Proximity effects in superconductor-ferromagnet heterostructures
- Odd Triplet Superconductivity and Related Phenomena in Superconductor-Ferromagnet Structures
- Coupling of two superconductors through a ferromagnet : evidence for a pi-junction
- Novel Circuit Theory of Andreev Reflection
- Critical Current Oscillations in Strong Ferromagnetic Pi-Junctions
- Half-integer Shapiro steps at the 0-pi crossover of a ferromagnetic Josephson junction
- Anomalous charge transport in mesoscopic triplet superconductor junctions
- High quality ferromagnetic 0 and pi Josephson tunnel junctions
- Circuit theory of unconventional superconductor junctions
- Theory of enhanced proximity effect by mid gap Andreev resonant state in diffusive normal metal / triplet superconductor junctions
- Anomalous Josephson effect in p-wave dirty junctions
- Observation of Periodic pi-Phase Shifts in Ferromagnet-Superconductor Multilayers
- Theory of charge transport in diffusive normal metal / unconventional singlet superconductor contacts
- Striking properties of Superconductor/Ferromagnet structures with spin-dependent scattering
- DC Josephson Effect in SNS Junctions of Anisotropic Superconductors
- Characteristics of strong ferromagnetic Josephson junctions with epitaxial barriers
- Peculiar properties of the Josephson junction at the transition from 0 to Pi state
- Disappearance of Ensemble-Averaged Josephson Current in Dirty SNS Junctions of d-wave Superconductors
- Resonant proximity effect in normal metal / diffusive ferromagnet / superconductor junctions
- Resonant peak in the density of states in the normal metal / diffusive ferromagnet / superconductor junctions
- Surface electronic scattering in d-wave superconductors
- Superharmonic Josephson relation at 0-/-junction transition
- Fabrication of high quality ferromagnetic Josephson junctions
- Critical current in Nb-Cu-Nb junctions with non-ideal interfaces
- Nonmonotonic temperature dependence of critical current in diffusive d-wave junctions
- Angular dependence of Josephson currents in unconventional superconducting junctions
- Spin-polarized proximity effect in superconducting junctions
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- Spin-polarized supercurrents for spintronics: a review of current progress
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- Interplay of ferromagnetism and triplet superconductivity in a Josephson junction
- 0- transition in magnetic triplet superconductor Josephson junctions
- Triplet Josephson effect with magnetic feedback
- The role of interface transparency and spin-dependent scattering in diffusive ferromagnet/superconductor heterostructures
- Spontaneous spin current due to triplet superconductor--ferromagnet interfaces
- Origin and control of spin currents in a magnetic triplet Josephson junction
- Robustness of Spin-Triplet Pairing and Singlet-Triplet Pairing Crossover in Superconductor/Ferromagnet Hybrids
- Charge and spin supercurrents in triplet superconductor--ferromagnet--singlet superconductor Josephson junctions
- Odd-frequency Cooper pair amplitude around a vortex core in a chiral p-wave superconductor in the quantum limit
- Theory of Josephson effect in chiral p-wave superconductor / diffusive normal metal / chiral p-wave superconductor junctions
- Identifying the odd-frequency superconducting state by a field-induced Josephson effect
- Spin and Charge Currents in SNS Josephson Junction with f-wave Pairing Symmetry
- A quantitative model for IcR product in d-wave Josephson junctions
- Anomalous Surface Impedance in a Normal-metal/Superconductor Junction with a Spin-active Interface
- Characterization of Sr2RuO4 Josephson junctions made of epitaxial films
- Control of Edge Currents at a Ferromagnet - Triplet Superconductor Interface by Multiple Helical Majorana Modes
- Unusual Superconducting Proximity Effect in Magnetically Doped Topological Josephson Junctions
- Controllable enhancement of -wave superconductivity via magnetic coupling to a conventional superconductor
- The physics of superconductor-ferromagnet hybrid structures
- Effect of helical edge states on the tunneling conductance in ferromagnet/noncentrosymmetric superconductors junctions