Tuning odd triplet superconductivity by spin pumping
arXiv:0906.4895 · doi:10.1103/PhysRevB.80.104416
Abstract
We study proximity effect in diffusive ferromagnet/normal-metal/superconductor junction with precessing magnetization of the ferromagnet. We find that the odd-frequency pairing induced in the normal metal is modified by spin pumping from the ferromagnet and hence can be tuned by changing the precessional frequency. At the frequency corresponding to twice the superconducting gap, the odd-frequency pairing is strongly enhanced. We find a crossover from the even- to the odd-frequency superconductivity in the normal metal by tuning the precessional frequency. This gives a clearcut signature of the odd-frequency superconductivity observable by scanning tunneling microscopy. According to the pairing symmetries in the normal metal, we find a crossover from the gap to the peak structure in the tunneling conductance between the normal metal and a scanning tunneling microscope tip.
8 pages, 4 figures
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- Symmetry and Topology in Superconductors - Odd-frequency pairing and edge states -
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- Long-range spin-triplet proximity effect in Josephson junctions with multilayered ferromagnets
- Inducing odd-frequency triplet superconducting correlations in a normal metal
- Signature of the long range triplet proximity effect in the density of states
- Spin pumping between noncollinear ferromagnetic insulators through thin superconductors
- Influence of the spin-dependent quasiparticle distribution on the Josephson current through a ferromagnetic weak link
- Magnetization induced by odd-frequency spin-triplet Cooper pairs in a Josephson junction with metallic trilayers
- Andreev current induced by ferromagnetic resonance
- Dynamic spin-triplet order induced by alternating electric fields in superconductor-ferromagnet-superconductor Josephson junctions
- Superconductivity-enhanced spin pumping: Role of Andreev resonances
- Spin pumping in d-wave superconductor/ferromagnet hybrids
- Composite excitation of Josephson phase and spin waves in Josephson junctions with ferromagnetic insulator
- Floquet engineering triplet superconductivity in superconductors with spin-orbit coupling or altermagnetism
- Transport Properties in Ferromagnetic Josephson Junction between Triplet Superconductors
- Zero-Field Fiske Resonance Coupled with Spin-waves in Ferromagnetic Josephson Junctions