Superfluid stiffness of twisted multilayer graphene: Part-2

ORAL

Abstract

The variation of superfluid stiffness with temperature is conventionally used to extract superconducting pairing symmetries. However, interpretations based on temperature dependence alone is known to be challenging. As an alternate method, we explore the measurement of superfluid stiffness as a function of current bias and apply it to twisted graphene. We show that the combination of current bias and temperature provides more detailed insights into pairing symmetries and enables subtle distinctions between anisotropic gaps, nodal gaps and disorder induced behavior.

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Presenters

  • Zeyu Hao

    • Harvard University

Authors

  • Zeyu Hao

    • Harvard University

  • Abhishek Banerjee

    • Harvard University

  • Mary Kreidel

    • Harvard University

  • Isabelle Y Phinney

    • Harvard University

  • Jeong Min Park

    • Massachusetts Institute of Technology

  • Patrick Ledwith

    • Harvard University
    • Harvard university

  • Andrew Zimmerman

    • Harvard University

  • Robert M Westervelt

    • Harvard University

  • Pablo Jarillo-Herrero

    • Massachusetts Institute of Technology MI
    • Massachusetts Institute of Technology MIT
    • Massachusetts Institute of Technology

  • Pavel A Volkov

    • University of Connecticut

  • Ashvin Vishwanath

    • Harvard University

  • Kin Chung Fong

    • Raytheon BBN Technologies
    • Raytheon BBN
    • BBN Raytheon

  • Philip Kim

    • Harvard University