NMR shift measurements of69Ga in unconventional superconductor PuRhGa5

Hironori Sakai, Yo Tokunaga, Tatsuya Fujimoto, Shinsaku Kambe, Russell E. Walstedt, Hiroshi Yasuoka, Dai Aoki, Yoshiya Homma, Etsuji Yamamoto, Akio Nakamura, Yoshinobu Shiokawa, Kunihisa Nakajima, Yasuo Arai, Tatsuma D. Matsuda, Yoshinori Haga, Yoshichika Onuki

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The NMR shift (K) at the Ga(2) site (the 4i site) has been measured in PuRhGa5, a compound which shows anisotropic superconductivity below Tc ≈ 9 K. In the normal state, K(T) is very nearly independent of T below ∼30 K. This result is consistent with the relaxation rate measurements. This Korringa-like behavior indicates the formation of Fermi-liquid state below ∼30 K. The transferred hyperfine coupling constants have been estimated from the relation between K and the bulk susceptibility, showing a strong anisotropy. Measurements of K(T) in the superconducting state have also been performed. A decrease of K in the superconducting state has been observed, which strongly suggests a spin-singlet pairing.

Original languageEnglish
Pages (from-to)50-52
Number of pages3
Journaljournal of the physical society of japan
Issue numberSUPPL.
Publication statusPublished - 2006


  • NMR shift
  • PuRhGa
  • Spin-singlet pairing
  • Superconductivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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