Superconductor-insulator-ferromagnet-superconductor Josephson junction: From the dirty to the clean limit
arXiv:1109.3658 · doi:10.1103/PhysRevB.84.144513
Abstract
The proximity effect and the Josephson current in a superconductor-insulator-ferromagnet-superconductor (SIFS) junction are investigated within the framework of the quasiclassical Eilenberger equations. This investigation allows us to compare the dirty and the clean limits, to investigate an arbitrary impurity scattering, and to determine the applicability limits of the Usadel equations for such structures. The role of different types of the FS interface is analyzed. It is shown that the decay length and the spatial oscillation period of the Eilenberger function may exhibit a nonmonotonic dependence on the properties of the ferromagnetic layer such as exchange field or electron mean free path. The results of our calculations are applied to the interpretation of experimentally observed dependencies of the critical current density on the ferromagnet thickness in Josephson junctions containing a Ni layer with an arbitrary scattering.
15 pages, 7 figures, to be published in Phys. Rev. B
References in corpus (8)
- Critical Current Oscillations in Strong Ferromagnetic Pi-Junctions
- 0-pi Josephson tunnel junctions with ferromagnetic barrier
- High quality ferromagnetic 0 and pi Josephson tunnel junctions
- Josephson tunnel junctions with strong ferromagnetic interlayer
- Static and dynamic properties of 0, pi, and 0-pi ferromagnetic tunnel Josephson Junctions
- Nonsinusoidal current-phase relation in strongly ferromagnetic and moderately disordered SFS junctions
- Proximity effect in ferromagnet/superconductor hybrids: from diffusive to ballistic motion
- Magnetic anisotropy in ferromagnetic Josephson junctions
Cited by in corpus (16)
- Spin-polarized supercurrents for spintronics: a review of current progress
- Singlet-triplet conversion and the long-range proximity effect in superconductor-ferromagnet structures with generic spin dependent fields
- Van der Waals Ferromagnetic Josephson Junctions
- Ferromagnetic Materials for Josephson π Junctions
- Interaction of Josephson and magnetic oscillations in Josephson tunnel junctions with a ferromagnetic layer
- Superconducting spin valves controlled by spiral re-orientation in B20-family magnets
- Critical Current Oscillations of Elliptical Josephson Junctions with Single-Domain Ferromagnetic Layers
- The effect of normal metal layers in ferromagnetic Josephson junctions
- Crossover between short and long range proximity effects in SFS junctions with Ni-based ferromagnets
- Josephson effect in SIFS-tunnel junctions with domain walls in weak link region
- Pt and CoB trilayer Josephson junctions with perpendicular magnetic anisotropy
- The physics of superconductor-ferromagnet hybrid structures
- Dynamic properties of asymmetric double Josephson junction stack with quasiparticle imbalance
- Effect of interfaces on supercurrent through ferromagnetic materials
- Enhancement of supercurrent through ferromagnetic materials by interface engineering
- Demonstration of 0-pi transition in Josephson junctions containing unbalanced synthetic antiferromagnets