Ir d-band derived superconductivity in the lanthanum-iridium system LaIr3 system

ORAL

Abstract

Here, we have reported the synthesis and characterization of LaIr3, which displays superconductivity below Tc = 3.3 K.
LaIr3 is a superconductor where the bands near the Fermi surface are dominated by Ir 5 d states that are strongly affected
by SOC. Thus, it is one of the few examples of a lanthanide-based superconductor where 5 d electrons play the dominant
role in the superconductivity. The superconducting parameters obtained from physical properties measurements of LaIr3 suggest
that it is a weakly-coupled BCS-type superconductor. These results motivate future work focused on exploring
intermetallic Ir-based superconductors that form in noncentrosymmetric structure types. Strong SOC in these systems
would then be antisymmetric, which often leads to exotic and unconventional superconductivity.

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Presenters

  • Neel Haldolaarachchige

    Physical Sciences, Bergen Community College, Bergen Community College

Authors

  • Neel Haldolaarachchige

    Physical Sciences, Bergen Community College, Bergen Community College

  • Leslie Schoop

    Princeton University, Chemistry, Princeton University, Department of Chemistry, Princeton University, Chemistry, Princeton

  • Mojammel Alam Khan

    Physics, Louisiana State University, Argonne National Laboratory

  • Wenxuan Huang

    Department of Mat. Sci. and Eng., Massachusetts Institute of Technology,

  • Huiwen Ji

    Princeton University

  • Kalani Hettiarachchilage

    Physics, The Collage of New Jersey, The Collage of New Jersey

  • David P Young

    Physics, Louisiana State University, Physics and Astronomy Department, Louisiana State University, Louisiana State University