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Single Crystal Synthesis of the Spin-Triplet Superconductor LaNiGa2

ORAL

Abstract

Previous μSR work on polycrystalline samples showed that LaNiGa2 breaks time-reversal symmetry upon entering the superconducting state. Follow up work suggested that this rare property occurs because of spin-triplet interband Cooper pairing amongst “nearly degenerate” Fermi surfaces. All previous results have been obtained on polycrystalline samples due to the lack of a single crystal synthesis technique. Here we report on the single crystal synthesis of LaNiGa2, and updated physical properties. Subsequent electronic structure calculations and angle-resolved photoemission spectroscopy data are discussed in the context of the proposed scenario for spin-triplet superconductivity.

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Presenters

  • Jackson Badger

    University of California, Davis

Authors

  • Jackson Badger

    University of California, Davis

  • Yundi Quan

    Physics Department, University of Florida, Department of Physics, University of Florida, University of California, Davis

  • Matthew Staab

    University of California, Davis

  • Antonio Rossi

    Lawrence Berkeley National Laboratory, University of California, Davis, Lawrence Berkeley National Lab, Advanced Light Source, Advanced Light Source, Lawrence Berkeley National Laboratory

  • Kelly Neubauer

    University of California, Davis

  • Kasey Devlin

    University of California, Davis

  • Chris Perez

    University of California, Davis

  • Susan Kauzlarich

    University of California, Davis

  • Jim Fettinger

    University of California, Davis

  • Peter Klavins

    University of California, Davis

  • Dai Aoki

    IMR, Tohoku University, IMR, Tohoku Univ., Institute for Materials Research, Tohuko University, Tohoku University, Tohoku Univ

  • Inna Vishik

    University of California, Davis, Physics and Astronomy, University of California, Davis

  • Warren Pickett

    Department of Physics, University of California Davis, University of California, Davis

  • Valentin Taufour

    University of California, Davis