학술논문

Absence of strong magnetic fluctuations or interactions in the normal state of LaNiGa$_2$

Document Type

Working Paper

Author

Sherpa, P.; Vinograd, I.; Shi, Y.; Sreedhar, S. A.; Chaffey, C.; Kissikov, T.; Jung, M. -C.; Bontana, A. S.; Dioguardi, A. P.; Yamamoto, R.; Hirata, M.; Conti, G.; Nemsak, S.; Badger, J. R.; Klavins, P.; Vishik, I.; Taufour, V.; Curro, N. J.

Source

Subject

Condensed Matter - Superconductivity

Language

Abstract

We present nuclear magnetic (NMR) and qudrupole (NQR) resonance and magnetization data in the normal state of the topological crystalline superconductor LaNiGa$_2$. We find no evidence of magnetic fluctuations or enhanced paramagnetism. These results suggest that the time-reversal symmetry breaking previously reported in the superconducting state of this material is not driven by strong electron correlations.
Comment: 9 pages, 7 figures

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