Josephson effect and spin-triplet pairing correlations in SF1F2S junctions
arXiv:1103.0293 · doi:10.1103/PhysRevB.84.064511
Abstract
We study theoretically the Josephson effect and pairing correlations in planar SF1F2S junctions that consist of conventional superconductors (S) connected by two metallic monodomain ferromagnets (F1 and F2) with transparent interfaces. We obtain both spin-singlet and -triplet pair amplitudes and the Josephson current-phase relations for arbitrary orientation of the magnetizations using the self-consistent solutions of Eilenberger equations in the clean limit and for a moderate disorder in ferromagnets. We find that the long-range spin-triplet correlations cannot prevail in symmetric junctions with equal ferromagnetic layers. Surprisingly, the long-range spin-triplet correlations give the dominant second harmonic in the Josephson current-phase relation of highly asymmetric SF1F2S junctions. The effect is robust against moderate disorder and variations in the layers thickness and exchange energy of ferromagnets.
7 pages, 9 figures
References in corpus (12)
- A spin triplet supercurrent through the half-metallic ferromagnet CrO2
- Half-integer Shapiro steps at the 0-pi crossover of a ferromagnetic Josephson junction
- Triplet proximity effect in FSF trilayers
- Andreev reflection from non-centrosymmetric superconductors and Majorana bound state generation in half-metallic ferromagnets
- Odd Triplet Pairing in clean Superconductor/Ferromagnet heterostructures
- Josephson effect due to the long-range odd-frequency triplet superconductivity in SFS junctions with Neel domain walls
- Induced Triplet Pairing in clean s-wave Superconductor/Ferromagnet layered structures
- Josephson coupling through ferromagnetic heterojunctions with noncollinear magnetizations
- Odd triplet superconductivity in superconductor-ferromagnet structures with a narrow domain wall
- Josephson current in diffusive multilayer superconductor/ferromagnet/superconductor junctions
- Josephson current in a superconductor-ferromagnet junction with two non-collinear magnetic domains
- Proximity effect in ferromagnet/superconductor hybrids: from diffusive to ballistic motion
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- Long-Range Triplet Supercurrents Induced by Singlet Supercurrents Parallel to Magnetic Interfaces
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- Theoretical study of magnetism induced by proximity effect in a ferromagnetic Josephson junction with a normal metal
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