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.

*The research was supported by the University of California Research Initiatives (UC Lab Fees).

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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