Non-local spin-sensitive electron transport in diffusive proximity heterostructures
arXiv:1005.3426 · doi:10.1103/PhysRevB.82.024522
Abstract
We formulate a quantitative theory of non-local electron transport in three-terminal disordered ferromagnet-superconductor-ferromagnet structures. We demonstrate that magnetic effects have different implications: While strong exchange field suppresses disorder-induced electron interference in ferromagnetic electrodes, spin-sensitive electron scattering at superconductor-ferromagnet interfaces can drive the total non-local conductance negative at sufficiently low energies. At higher energies magnetic effects become less important and the non-local resistance behaves similarly to the non-magnetic case. Our predictions can be directly tested in future experiments on non-local electron transport in hybrid FSF structures.
8 pages, 4 figures
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Cited by in corpus (5)
- Nonlocal Thermoelectric Effects and Nonlocal Onsager Relations in a Three-Terminal Proximity-Coupled Superconductor-Ferromagnet Device
- Theory of Andreev Bound States in S-F-S Junctions and S-F Proximity Devices
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