Nonlocal Thermoelectric Effects and Nonlocal Onsager relations in a Three-Terminal Proximity-Coupled Superconductor-Ferromagnet Device

Machon, Peter; Eschrig, Matthias; Belzig, Wolfgang

Nonlocal Thermoelectric Effects and Nonlocal Onsager relations in a Three-Terminal Proximity-Coupled Superconductor-Ferromagnet Device

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Datum

2013

Open Access-Veröffentlichung

Open Access Green

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Physik

Publikationstyp

Zeitschriftenartikel

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Published

Erschienen in

Physical Review Letters. 2013, 110(4). ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.110.047002

Zusammenfassung

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 spindependent scattering phase shifts at each of the two interfaces will lead to very large nonlocal thermoelectric
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.

Fachgebiet (DDC)

530 Physik

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ISO 690

MACHON, Peter, Matthias ESCHRIG, Wolfgang BELZIG, 2013. Nonlocal Thermoelectric Effects and Nonlocal Onsager relations in a Three-Terminal Proximity-Coupled Superconductor-Ferromagnet Device. In: Physical Review Letters. 2013, 110(4). ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.110.047002

BibTex

@article{Machon2013Nonlo-22480,
  year={2013},
  doi={10.1103/PhysRevLett.110.047002},
  title={Nonlocal Thermoelectric Effects and Nonlocal Onsager relations in a Three-Terminal Proximity-Coupled Superconductor-Ferromagnet Device},
  number={4},
  volume={110},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Machon, Peter and Eschrig, Matthias and Belzig, Wolfgang}
}

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