Neutron scattering study on the field-induced antiferro-quadrupolar ordering in the heavy fermion superconductor PrOs4Sb12

N. Metoki, K. Kaneko, S. Araki, M. Kohgi, K. Iwasa, K. Kuwahara, N. Bernhoeft, J. M. Mignot, A. Gukasov, H. Sato, Y. Aoki, H. Sugawara

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Abstract

We found the field-induced antiferro-quadrupole (AFQ) ordering in the Pr-based heavy fermion superconductor PrOs4Sb12 by means of neutron scattering. The field-induced staggered moment and the field dependence of the crystal field excitation spectra can be well understood in terms of the mean field Hamiltonian based on the singlet Γ1 with triplet Γ4 first excited state, where the quadrupolar interaction plays essential role for the AFQ ordering.

Original languageEnglish
Pages (from-to)e91-e92
JournalJournal of Magnetism and Magnetic Materials
Volume272-276
Issue numberSUPPL. 1
DOIs
Publication statusPublished - May 1 2004
Externally publishedYes

Keywords

  • Heavy fermion
  • Neutron scattering
  • PrOsSb
  • Quadrupolar ordering
  • Superconductivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Metoki, N., Kaneko, K., Araki, S., Kohgi, M., Iwasa, K., Kuwahara, K., Bernhoeft, N., Mignot, J. M., Gukasov, A., Sato, H., Aoki, Y., & Sugawara, H. (2004). Neutron scattering study on the field-induced antiferro-quadrupolar ordering in the heavy fermion superconductor PrOs4Sb12. Journal of Magnetism and Magnetic Materials, 272-276(SUPPL. 1), e91-e92. https://doi.org/10.1016/j.jmmm.2003.11.315