Neutron-diffraction study of the unusual ordered phases of Ce 0.75la0.25B6

K. Iwasa, K. Kuwahara, M. Kohgi, P. Fischer, A. Dönni, L. Keller, T. C. Hansen, S. Kunii, N. Metoki, Y. Koike, K. Ohoyama

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26 Citations (Scopus)


Ce0.75La0.25B6 shows paramagnetic phase (phase I), 4f-electron quadrupolar ordered phase (II), magnetically ordered phase (III), and an unknown phase IV. In order to investigate order parameters in phases III and IV, neutron diffraction experiments were performed down to 74 mK. Magnetic diffraction pattern measured in phase III is reproduced by a model in which spin arrangement is modified from the previously suggested structure for CeB6. No magnetic reflections were observed in phase IV. Thus, the order parameter in phase IV is expected to be 4f-electron multipoles rather than magnetic dipoles.

Original languageEnglish
Pages (from-to)582-583
Number of pages2
JournalPhysica B: Condensed Matter
Issue numberII
Publication statusPublished - 2003 May
Externally publishedYes


  • CeLaB
  • Electron multipole effect
  • Neutron diffraction

ASJC Scopus subject areas

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


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