Nonlocal Thermoelectric Effects and Nonlocal Onsager Relations in a Three-Terminal Proximity-Coupled Superconductor-Ferromagnet Device
arXiv:1301.1840 · doi:10.1103/PhysRevLett.110.047002
Abstract
We study thermal and charge transport in a three-terminal setup consisting of one superconducting and two ferromagnetic contacts. We predict that the simultaneous presence of spin filtering and of spin- dependent scattering phase shifts at each of the two interfaces will lead to very large nonlocal thermo- electric effects both in clean and in disordered systems. The symmetries of thermal and electric transport coefficients are related to fundamental thermodynamic principles by the Onsager reciprocity. Our results show that a nonlocal version of the Onsager relations for thermoelectric currents holds in a three-terminal quantum coherent ferromagnet-superconductor heterostructure including a spin-dependent crossed Andreev reflection and coherent electron transfer processes.
5 pages, 4 figures, supplemental material
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Cited by in corpus (12)
- Thermoelectric efficiency of three-terminal quantum thermal machines
- Proposal for a phase-coherent thermoelectric transistor
- Separation of heat and charge currents for boosted thermoelectric conversion
- Very large thermophase in ferromagnetic Josephson junctions
- Long-range spin and charge accumulation in mesoscopic superconductors with Zeeman splitting
- Cross thermoelectric coupling in normal-superconductor quantum dots
- Electron-hole imbalance and large thermoelectric effect in superconducting hybrids with spin-active interfaces
- Non-equilibrium spin transport in Zeeman-split superconductors
- Time-delay matrix, midgap spectral peak, and thermopower of an Andreev billiard
- Enhancement of thermoelectric effect in diffusive superconducting bilayers with magnetic interfaces
- Heat transport and electron cooling in ballistic normal-metal/spin-filter/superconductor junctions
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