Competing pairing propensities in twisted bilayer graphene

ORAL

Abstract

We employ a synopsis of random phase approximation (RPA) and functional renormalization group (fRG) to investigate twisted bilayer graphene based on a two-orbital effective model on the honeycomb lattice. Exploiting the ability of N-patch fRG to resolve the harmonic composition of a given superconducting instability channel, we develop a detailed profile of electronically mediated unconventional superconducting instabilities in twisted bilayer graphene, and highlight experimental signatures to distinguish between the resulting possible scenarios.

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Presenters

  • Xianxin Wu

    • Institute for Theoretical Physics and Astrophysics, University of Wuerzburg
    • Physics, University of Wurzburg
    • Institute for Theoretical Physics and Astrophysics, Julius-Maximilians University of Wurzburg, Am Hubland, D-97074 Wurzburg, Germany
    • Institut für Theoretische Physik und Astrophysik, Julius-Maximilians-Universität Würzburg
    • Institute of Physics, Chinese Academy of Sciences
    • Univ of Wuerzburg
    • Institute for Theoretical Physics, University of Wuerzburg
    • Univ of Wurzburg

Authors

  • Xianxin Wu

    • Institute for Theoretical Physics and Astrophysics, University of Wuerzburg
    • Physics, University of Wurzburg
    • Institute for Theoretical Physics and Astrophysics, Julius-Maximilians University of Wurzburg, Am Hubland, D-97074 Wurzburg, Germany
    • Institut für Theoretische Physik und Astrophysik, Julius-Maximilians-Universität Würzburg
    • Institute of Physics, Chinese Academy of Sciences
    • Univ of Wuerzburg
    • Institute for Theoretical Physics, University of Wuerzburg
    • Univ of Wurzburg

  • mario Fink

    • Institute for Theoretical Physics and Astrophysics, University of Wuerzburg
    • Institut für Theoretische Physik und Astrophysik, Julius-Maximilians-Universität Würzburg

  • Michael Klett

    • Institute for theoretical physics, University of Wuerzburg
    • Institut für Theoretische Physik und Astrophysik, Julius-Maximilians-Universität Würzburg
    • Institute for Theoretical Physics, University of Wuerzburg

  • Tim Wehling

    • Institute for Theoretical Physics, Bremen Center for Computational Material Science, University of Bremen
    • University of Bremen

  • Werner R Hanke

    • Institute for Theoretical Physics and Astrophysics, University of Wuerzburg
    • Institut für Theoretische Physik und Astrophysik, Julius-Maximilians-Universität Würzburg

  • Ronny Thomale

    • Institute for Theoretical Physics and Astrophysics, University of Wuerzburg
    • University of Wurzburg
    • Institute for theoretical physics, University of Wuerzburg
    • Institute for Theoretical Physics and Astrophysics, University Wuerzburg
    • Institut für Theoretische Physik und Astrophysik, Julius-Maximilians-Universität Würzburg
    • Univ of Wuerzburg
    • Institute for Theoretical Physics and Astrophysics, University of Würzburg
    • Institute for Theoretical Physics, University of Wuerzburg
    • Univ of Wurzburg