NMR measurements in LaNiGa<sub>2</sub>

ORAL

Abstract

LaNiGa2 is a layered centrosymmetric superconductor with an orthorhombic crystal structure. ??SR experiments have observed spontaneous magnetic fields at the onset of superconducting state, implying time-reversal symmetry breaking and suggesting the possibility of triplet pairing. We previously reported on the observation of the enhancement of the NMR relaxation rate just below TC, suggesting the presence of a Hebel-Slichter coherence peak, but were limited by the base temperature of our cryostat. These data have now been extended down to 100 mK.

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Presenters

  • Phurba Sherpa

    • University of California, Davis

Authors

  • Phurba Sherpa

    • University of California, Davis

  • I. Vinograd

    • University of California, Davis
    • Department of Physics, University of California Davis, Davis, CA

  • Jackson R Badger

    • University of California, Davis

  • Michihiro Hirata

    • Los Alamos National Lab
    • Los Alamos Natinal Laboratory

  • Valentin Taufour

    • University of California, Davis
    • University of California Davis

  • N. J Curro

    • University of California, Davis
    • Department of Physics, University of California Davis, Davis, CA