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First Angle-Resolved Photoemission Studies of LaNiGa<sub>2</sub>

ORAL

Abstract

LaNiGa2 has been observed to be a time reversal symmetry breaking superconductor below 2 Kelvin, large single crystal growths are now available which allow angle-resolved photoemission spectroscopy (ARPES) to probe the electronic structure. We will show the first ARPES studies on LaNiGa2, showing 3D band dispersion and fermiology consistent with first principles calculations. ARPES data provides evidence for band degeneracies at the Fermi surface, a predicted mechanism for the observed spin-triplet superconductivity.

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Presenters

  • Matthew Staab

    University of California, Davis

Authors

  • Matthew Staab

    University of California, Davis

  • Jackson Badger

    University of California, Davis

  • Yundi Quan

    Physics Department, University of Florida, Department of Physics, University of Florida, 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

  • Kasey Devlin

    University of California, Davis

  • Kelly Neubauer

    University of California, Davis

  • Chris Perez

    University of California, Davis

  • Jim Fettinger

    University of California, Davis

  • Peter Klavins

    University of California, Davis

  • Susan Kauzlarich

    University of California, Davis

  • Dai Aoki

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

  • Warren Pickett

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

  • Valentin Taufour

    University of California, Davis

  • Inna Vishik

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