2D superconductivity in a nodal loop semimetal with purely 3D Fermi surfaces

ORAL

Abstract

The exotic properties of topological semimetals (TSMs) have attracted great attention and significant efforts have been made in exploring new topological phases and materials. Some of the TSMs are predicated to host exotic band properties, such as butterflylike coplanar ellipses nodal lines. Here in such a TSM, our transport experiments reveal a 2D superconductivity. This is very surprising given that our quantum oscillations experiments show 3D Fermi surface. We discuss the possible origin of the superconductivity in light of our angle-resolved photoemission spectroscopy and first-principles calculation results.

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Presenters

  • Qi Zhang

    • Princeton University

Authors

  • Qi Zhang

    • Princeton University

  • Shafayat Hossain

    • Princeton University

  • Zi-Jia Cheng

    • Princeton University

  • Brian Casas

    • FSU-NHMFL

  • Zahir Muhammad

    • Hefei Innovation Research Institute

  • Weisheng ZHAO

    • Beihang University
    • BeiHang University

  • Rajibul Islam

    • International Research Centre MagTop

  • Carmine Autieri

    • International Research Centre MagTop, Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL-02668 Warsaw, Poland
    • International Research Centre MagTop, Institute of Physics, Polish Academy of Sciences, Aleja Lotników 32/46, PL-02668 Warsaw, Poland
    • Polish Academy of Sciences
    • International Research Centre MagTop

  • Yu-Xiao Jiang

    • Princeton University

  • Maksim Litskevich

    • Princeton University

  • Tyler A Cochran

    • Princeton University

  • Luis Balicas

    • National High Magnetic Field Laboratory

  • M. Zahid M Hasan

    • Princeton University