Symmetry lowering in NpO2: 17O-NMR study

Y. Tokunaga, Yoshiya Homma, S. Kambe, Dai Aoki, H. Sakai, E. Yamamoto, A. Nakamura, Y. Shiokawa, R. E. Walstedt, H. Yasuoka

Research output: Contribution to journalArticle

7 Citations (Scopus)


In order to elucidate the nature of the exotic ordered phase of NpO2 below T0=26K, we have initiated the first 17O-NMR measurements. From the temperature dependence of the 17O-NMR spectrum, the occurrence of two inequivalent oxygen sites has been confirmed below T0. This finding verifies the lowering of symmetry in the ordered state of NpO2.

Original languageEnglish
Pages (from-to)1096-1098
Number of pages3
JournalPhysica B: Condensed Matter
Issue numberSPEC. ISS.
Publication statusPublished - 2005 Apr 30


  • NMR
  • NpO
  • Quadrupolar/octupolar ordering

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Tokunaga, Y., Homma, Y., Kambe, S., Aoki, D., Sakai, H., Yamamoto, E., Nakamura, A., Shiokawa, Y., Walstedt, R. E., & Yasuoka, H. (2005). Symmetry lowering in NpO2: 17O-NMR study. Physica B: Condensed Matter, 359-361(SPEC. ISS.), 1096-1098.