Spin-sensitive Long-ranged Proximity Effect for Triplet Superconductors

Abstract

The discovery of noncentrosymmetric superconductors, such as CePt${}_3$Si, and chiral superconductors, such as Sr${}_2$RuO${}_4$, calls for experimental methods to identify the presence of spin-triplet pairing. We here demonstrate a method which accomplishes this in an appealingly simple manner: a spin-sensitive proximity effect in a ferromagnet$\mid$triplet superconductor bilayer. It is shown how the orientation of the field can be used to unambiguously distinguish between different spin-triplet states. Moreover, the proximity effect becomes long-ranged in spite of the presence of an exchange field and even without any magnetic inhomogeneities, in contrast to conventional S$\mid$F junctions. Our results can be verified by STM-spectroscopy and could be useful as a tool to characterize the pairing state in unconventional superconducting materials.

4 pages, 3 figures

References in corpus (5)

• Nodal Structure of Unconventional Superconductors Probed by the Angle Resolved Thermal Transport Measurements
• Surface bound states and spin currents in non-centrosymmetric superconductors
• Andreev bound states and tunneling characteristics of a non-centrosymmetric superconductor
• Analytical investigation of magnetic field distributions around superconducting strips on ferromagnetic substrates
• Quantum transport in noncentrosymmetric superconductors and thermodynamics of ferromagnetic superconductors

Cited by in corpus (17)

• Spin Supercurrent, Magnetization Dynamics, and Phi-State in Spin-Textured Josephson Junctions
• Meissner Effect Probing of Odd-Frequency Triplet Pairing in Superconducting Spin Valves
• Proximity effect with noncentrosymmetric superconductors
• Spin-orbital coupling in a triplet superconductor-ferromagnet 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
• Quasiclassical Eilenberger theory of the topological proximity effect in a superconducting nanowire
• Interface currents in topological superconductor-ferromagnet heterostructures
• Long-range proximity effect for opposite-spin pairs in S/F heterostructures under non-equilibrium quasiparticle distribution
• Josephson Effect in Noncentrosymmetric Superconductor Junctions
• Ferromagnetic SrRuO3 thin-film deposition on a spin-triplet superconductor Sr2RuO4 with highly conducting interface
• Signature of the long range triplet proximity effect in the density of states
• Proximity effects in spin-triplet superconductor-ferromagnet heterostucture with spin-active interface
• Anomalous Hall effect in semiconductor quantum wells in proximity to chiral p-wave superconductors
• Magnetic exchange interaction in spin-valve with chiral spin-triplet superconductor
• Anomalous anisotropic behaviour of spin-triplet proximity effect in Au/SrRuO${}_3$/Sr${}_2$RuO${}_4$ junctions
• Bulk-boundary correspondence in Josephson Junctions