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
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Phurba Sherpa
University of California, Davis
Authors
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Phurba Sherpa
University of California, Davis
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I. Vinograd
University of California, Davis, Department of Physics, University of California Davis, Davis, CA
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Jackson R Badger
University of California, Davis
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Michihiro Hirata
Los Alamos National Lab, Los Alamos Natinal Laboratory
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Valentin Taufour
University of California, Davis, University of California Davis
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N. J Curro
University of California, Davis, Department of Physics, University of California Davis, Davis, CA