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Exploring the superconducting state of a Dirac material

ORAL

Abstract

Superconductivity in a doped magnetic Weyl semimetal is predicted to be characterized by a topologically non-trivial nodal gap function. Realizing superconductivity in a centrosymmetric, non-magnetic Dirac material is a natural starting point in pursuit of such topological superconductivity. Previous theoretical and experimental work has demonstrated the existence of Dirac fermions in LaCuSb2. Here, we report on the properties of the superconducting state of LaCuSb2, including its sensitivity to magnetic fields and stoichiometry. The bulk superconducting phase transition is confirmed with specific heat, and the possible models of the gap function are discussed.

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Presenters

  • Chris J Lygouras

    Johns Hopkins University, John Hopkins University

Authors

  • Chris J Lygouras

    Johns Hopkins University, John Hopkins University

  • Juan Chamorro

    Johns Hopkins University

  • Tanya Berry

    Johns Hopkins University

  • Thomas J Halloran

    Johns Hopkins University

  • Junyi Zhang

    Johns Hopkins University

  • Kagetora Mikuri

    Univ of Tokyo-Kashiwanoha

  • Jun Gouchi

    Univ of Tokyo-Kashiwanoha

  • Yoshiya Uwatoko

    Univ of Tokyo-Kashiwanoha

  • Satoru Nakatsuji

    Univ of Tokyo-Kashiwanoha, Department of Physics, University of Tokyo, The University of Tokyo, University of Tokyo, Japan, Univ of Tokyo, Dept. of Phys. Univ. of Tokyo

  • Ken Livi

    Johns Hopkins University

  • Maxime Siegler

    Johns Hopkins University

  • Yi Li

    Johns Hopkins University

  • Collin L Broholm

    Johns Hopkins University, John Hopkins University

  • Tyrel M McQueen

    Johns Hopkins University, Department of Chemistry, The Johns Hopkins University