Nonlocal thermoelectric effects in high-field superconductor-ferromagnet hybrid structures

J. Heidrich; D. Beckmann

doi:10.1103/PhysRevB.100.134501

Nonlocal thermoelectric effects in high-field superconductor-ferromagnet hybrid structures

Superconductivity 2019-10-08 v1 Mesoscale and Nanoscale Physics

Authors: J. Heidrich , D. Beckmann

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Abstract

We report on the experimental observation of nonlocal spin-dependent thermoelectric effects in superconductor-ferromagnet multiterminal structures. Our samples consist of a thin superconducting aluminum wire with several ferromagnetic tunnel junctions attached to it. When a thermal excitation is applied to one of the junctions in the presence of a Zeeman splitting of the density of states of the superconductor, a thermoelectric current is observed in remote junctions at distances exceeding $10~\mathrm{\mu m}$ . The results can be explained by recent theories of coupled spin and heat transport in high-field superconductors.

Keywords

nonlocal thermoelectric effect superconductor-ferromagnet hybrid zeeman splitting spin heat transport multiterminal structure

Cite

@article{arxiv.1907.08441,
  title  = {Nonlocal thermoelectric effects in high-field superconductor-ferromagnet hybrid structures},
  author = {J. Heidrich and D. Beckmann},
  journal= {arXiv preprint arXiv:1907.08441},
  year   = {2019}
}

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