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

Autor: 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.
Rok vydání: 2023
Předmět:
Zdroj: Phys. Rev. B 109, 125113 (2024)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevB.109.125113
Popis: 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
Databáze: arXiv