Properties of tunnel Josephson junctions with a ferromagnetic interlayer

Abstract

We investigate superconductor/insulator/ferromagnet/superconductor (SIFS) tunnel Josephson junctions in the dirty limit, using the quasiclassical theory. We formulate a quantitative model describing the oscillations of critical current as a function of thickness of the ferromagnetic layer and use this model to fit recent experimental data. We also calculate quantitatively the density of states (DOS) in this type of junctions and compare DOS oscillations with those of the critical current.

9 pages, 8 figures, to be published in Phys. Rev. B

References in corpus (15)

• Proximity effects in superconductor-ferromagnet heterostructures
• Odd Triplet Superconductivity and Related Phenomena in Superconductor-Ferromagnet Structures
• Half-integer Shapiro steps at the 0-pi crossover of a ferromagnetic Josephson junction
• 0-pi Josephson tunnel junctions with ferromagnetic barrier
• High quality ferromagnetic 0 and pi Josephson tunnel junctions
• Observation of Periodic pi-Phase Shifts in Ferromagnet-Superconductor Multilayers
• Striking properties of Superconductor/Ferromagnet structures with spin-dependent scattering
• Characteristics of strong ferromagnetic Josephson junctions with epitaxial barriers
• Superconducting proximity effect in a diffusive ferromagnet with spin-active interfaces
• Scanning Tunneling Spectroscopy of the superconducting proximity effect in a diluted ferromagnetic alloy
• Superharmonic Josephson relation at 0-/$\pi$-junction transition
• Quantitative analysis of proximity effect in $Nb/C{o}_{60}F{e}_{40}$, Nb/Ni, and $Nb/C{u}_{40}N{i}_{60}$ bilayers
• Low-T_c Josephson junctions with tailored barrier
• Scattering by magnetic and spin-orbit impurities and the Josephson current in superconductor-ferromagnet-superconductor junctions
• Density of states in SF bilayers with arbitrary strength of magnetic scattering

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• Theoretical Model of Superconducting Spintronic SIsFS Devices
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• Critical supercurrent and ${\varphi }_0$ state for probing a persistent spin helix
• Theory of supercurrent transport in SIsFS Josephson junctions
• The role of interface transparency and spin-dependent scattering in diffusive ferromagnet/superconductor heterostructures
• Josephson $\phi$-junctions based on structures with complex normal/ferromagnet bilayer
• Spin supercurrent in Josephson contacts with noncollinear ferromagnets
• Magnetic and Superconducting Phase Diagram of Nb/Gd/Nb trilayers
• Current-voltage characteristics of tunnel Josephson junctions with a ferromagnetic interlayer
• Robustness of Spin-Triplet Pairing and Singlet-Triplet Pairing Crossover in Superconductor/Ferromagnet Hybrids
• Relaxation of Nonequilibrium Quasiparticles in Mesoscopic Size Superconductors
• Superconductor-insulator-ferromagnet-superconductor Josephson junction: From the dirty to the clean limit
• The effect of normal metal layers in ferromagnetic Josephson junctions
• Competitive 0 and π states in S/F multilayers: multimode approach
• Robustness of the $0-\pi$ transition against compositional and structural ageing in S/F/S heterostructures
• Calculation and measurement of critical temperature in thin superconducting multilayers
• Nonlinear Properties of Supercurrent-Carrying Single and Multi-Layer Thin-Film Superconductors
• Exploring the performance of thin-film superconducting multilayers as Kinetic Inductance Detectors for low-frequency detection
• Detection of small exchange fields in S/F structures
• Observation of Josephson coupling through an interlayer of antiferromagnetically ordered chromium
• Josephson tunnel junctions with ferromagnetic $\Fe_{0.75}\Co_{0.25}$ barriers
• Anomalous current-voltage characteristics of SFIFS Josephson junctions with weak ferromagnetic interlayers
• Critical current diffraction pattern of SIFS Josephson junctions with step-like F-layer
• Josephson effect in SIFS-tunnel junctions with domain walls in weak link region
• Reentrant superconductivity in proximity to a topological insulator
• Cascading Proximity Effects in Rotating Magnetizations
• Modelling proximity effects in Transition Edge Sensors to investigate the influence of lateral metal structures
• Low-temperature proximity effect in clean metals
• The physics of superconductor-ferromagnet hybrid structures
• Classification of magnetic inhomogeneities and $0-\pi$ transitions in superconducting-magnetic hybrid structures
• Width of the $0-\pi$ phase transition in diffusive magnetic Josephson junctions
• Josephson junctions with centered step and local variation of critical current density
• The role of canting and depleted-triplet minima in superconducting spin valve structures
• Dissipative current in SIFS Josephson junctions
• Fabrication and Characterization of Short Josephson Junctions with Stepped Ferromagnetic Barrier
• Proximity effect model for x-ray Transition Edge Sensors