Long-range spin-polarized quasiparticle transport in mesoscopic Al superconductors with a Zeeman splitting
arXiv:1208.0717 · doi:10.1103/PhysRevLett.109.207001
Abstract
We report on nonlocal transport in multiterminal superconductor-ferromagnet structures, which were fabricated by means of e-beam lithography and shadow evaporation techniques. In the presence of a significant Zeeman splitting of the quasiparticle states, we find signatures of spin transport over distances of several μm, exceeding other length scales such as the coherence length, the normal-state spin-diffusion length, and the charge-imbalance length. The relaxation length of the spin signal shows a nearly linear increase with magnetic field, hinting at a freeze-out of relaxation by the Zeeman splitting. We propose that the relaxation length is given by the recombination length of the quasiparticles rather than a renormalized spin-diffusion length.
5 pages, 4 figures, revtex
References in corpus (11)
- Spintronics: Fundamentals and applications
- Extremely long quasiparticle spin lifetimes in superconducting aluminium using MgO tunnel spin injectors
- Spin injection and relaxation in a mesoscopic superconductor
- Superconductors as ideal spin sources for spintronics
- Spin transport and relaxation in superconductors
- Charge imbalance in superconductors in the low-temperature limit
- Crossed Andreev reflection at spin-active interfaces
- Spin Transport in Diffusive Superconductors
- Observation of Andreev bound states at spin-active interfaces
- Spin transport and magnetoresistance in F/S/F spin valves
- Nonlocal conductance via overlapping Andreev bound states in ferromagnet-superconductor heterostructures
Cited by in corpus (67)
- Superconducting Spintronics
- Colloquium: Nonequilibrium effects in superconductors with a spin-splitting field
- Observation of thermoelectric currents in high-field superconductor-ferromagnet tunnel junctions
- Spin Imbalance and Spin-Charge Separation in a Mesoscopic Superconductor
- Thermal, electric and spin transport in superconductor/ferromagnetic-insulator structures
- Microscopic theory of spin transport at the interface between the superconductor and a ferromagnetic insulator
- Giant thermoelectric effects in a proximity-coupled superconductor-ferromagnet device
- Probe of Spin Dynamics in Superconducting NbN Thin Films via Spin Pumping
- Thermoelectric effects in superconductor-ferromagnet tunnel junctions on europium sulfide
- Spin-polarized quasiparticle transport in exchange-split superconducting aluminum on europium sulfide
- Long-range spin and charge accumulation in mesoscopic superconductors with Zeeman splitting
- Long-Range Spin-Triplet Correlations and Edge Spin Currents in Diffusive Spin-Orbit Coupled SNS Hybrids with a Single Spin-Active Interface
- Boosting spintronics with superconductivity
- Spin injection from a normal metal into a mesoscopic superconductor
- Generation of pure superconducting spin current in magnetic heterostructures via non-locally induced magnetism due to Landau Fermi-liquid effects
- Spin-transport in superconductors
- Giant transition-state enhancement of quasiparticle spin-Hall effect in an exchange-spin-split superconductor detected by non-local magnon spin-transport
- Superconductivity near a magnetic domain wall
- Long-range spin imbalance in mesoscopic superconductors under a Zeeman splitting
- On-demand thermoelectric generation of equal-spin Cooper pairs
- Quasiparticle Spin Resonance and Coherence in Superconducting Aluminium
- Non-equilibrium spin transport in Zeeman-split superconductors
- Injection of nonequilibrium quasiparticles into Zeeman-split superconductors: a way to create long-range spin imbalance
- Adiabatic and nonadiabatic spin torques induced by spin-triplet supercurrent
- Long-range spin current driven by superconducting phase difference in a Josephson junction with double layer ferromagnets
- Flux flow spin Hall effect in type-II superconductors with spin-splitting field
- Supercurrent Induced Charge-Spin Conversion in Spin-Split Superconductors
- Thermospin effects in superconducting heterostructures
- Nonlocal thermoelectric effects in high-field superconductor-ferromagnet hybrid structures
- Quasiclassical theory of charge transport across mesoscopic normal metal-superconducting heterostructures with current conservation
- Frequency-Domain Measurement of the Spin Imbalance Lifetime in Superconductors
- Spin-dependent thermoelectric effects in graphene based superconductor junctions
- Superconductivity provides a giant enhancement to the spin battery effect
- Spin Hanle effect in mesoscopic superconductors
- Stimulated quasiparticles in spin-split superconductors
- Spin-flip Enhanced Thermoelectricity in Superconductor-Ferromagnet Bilayers
- Thermoelectric detection of Andreev states in unconventional superconductors
- Spin currents driven by the Higgs mode in magnetic superconductors
- Controlling spin supercurrents via nonequilibrium spin injection
- Out-of-Equilibrium Spin Transport in Mesoscopic Superconductors
- Spin diffusion equation in superconductors in the vicinity of Tc
- A novel superconducting-velocity--tunable quasiparticle state and spin relaxation in GaAs (100) quantum wells in proximity to -wave superconductor
- Spin-polarized multiple Andreev reflections in spin-split superconductors
- Charge and spin transport in mesoscopic superconductors
- Spin current injection via equal-spin Cooper pairs in ferromagnet/superconductor heterostructures
- Giant magnetoanisotropy in the Josephson effect and switching of staggered order in antiferromagnets
- Spin imbalance in hybrid superconducting structures with spin-active interfaces
- Controllable supercurrent in mesoscopic superconductor-normal metal-ferromagnet crosslike Josephson structures
- Nonlocal transport and heating in superconductors under dual-bias conditions
- Long-Range Triplet Supercurrents Induced by Singlet Supercurrents Parallel to Magnetic Interfaces
- Phase-controlled spin and charge currents in superconductor-ferromagnet hybrids
- Spin Hall effect generated by fluctuating vortices in type-II superconductors
- Nonlocal spin correlations mediated by a superconductor
- Superconductor spintronics: Modeling spin and charge accumulation in out-of-equilibrium NS junctions subjected to Zeeman magnetic fields
- Spin relaxation, Josephson effect and Yu-Shiba-Rusinov states in superconducting bilayer graphene
- Yu-Shiba-Rusinov bands in superconductors in contact with a magnetic insulator
- RKKY interaction in a spin-split superconductor
- Spin-dependent coupling of supercurrent and nonequilibrium quasiparticles in high-field superconductors
- Spin-polarized quasiparticle control in a double spin-filter tunnel junction
- Fluctuation contribution to Spin Hall Effect in Superconductors
- Evidence for spin-dependent energy transport in a superconductor
- Hard superconducting gap and vortex-state spectroscopy in NbSe van der Waals tunnel junctions
- Emergence of Charge-Imbalanced BCS State and Suppression of Nonequilibrium FFLO State in Asymmetric NSN Junctions
- Effect of a magnetic field on the quasiparticle recombination in superconductors
- Spin injection and spin relaxation in odd-frequency superconductors
- Microwave control of the superconducting proximity effect and minigap in magnetic and normal metals
- Role of two-dimensional Ising superconductivity in the non-equilibrium quasiparticle spin-to-charge conversion efficiency