Thermoelectric Current in a Graphene Cooper Pair Splitter

ORAL

Abstract

Thermoelectric effect converting the temperature difference into the electric voltage and vice versa has a wealth of applications. Recent theoretical studies found that thermoelectricity may emerge as a result of the nonlocal Cooper pair splitting and elastic co-tunneling processes. We propose a coherent transport description of the nonlocal Seebeck effect and demonstrate its agreement with the experimental observations in a graphene-based Cooper pair splitting device. Our observation lays the ground for a new method of generating entangled electrons.

*This work was supported by Aalto University School of Science Visiting Professor grant to G.B.L., as well as by Academy of Finland Projects No. 290346 (Z.B.T., AF post doc), No. 314448 (BOLOSE), and No. 312295 (CoE, Quantum Technology Finland).
This work was also supported within the EU Horizon 2020 programme by ERC (QuDeT, No. 670743).
The work of N.S.K and A.G. at the University of Chicago was supported by the NSF grant DMR-1809188.
The work of V.M.V. was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division.

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Presenters

  • Nikita Kirsanov

    • Aalto University

Authors

  • Zhenbing Tan

    • Aalto University

  • Antti Laitinen

    • QCD Labs, Aalto University
    • Aalto University

  • Nikita Kirsanov

    • Aalto University

  • Alexey Galda

    • University of Chicago
    • James Franck Institute, University of Chicago

  • Valerii Vinokour

    • Argonne National Laboratory

  • Mohammad Tasnimul Haque

    • Aalto University

  • Alexander Savin

    • Aalto University

  • Dmitry Golubev

    • Aalto University

  • Gordey Lesovik

    • Moscow Institute of Physics and Technology

  • Pertti Juhani Hakonen

    • QCD Labs, Aalto University
    • Aalto University