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

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

Research output: Contribution to journal › Article

1 Citation (Scopus)

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
JournalJournal of Magnetism and Magnetic Materials
Volume272-276
Issue numberSUPPL. 1
DOIs
Publication statusPublished - May 2004
Externally publishedYes

Fingerprint

Heavy fermion superconductors
Hamiltonians
heavy fermion superconductors
Neutron scattering
Excited states
neutron scattering
quadrupoles
Crystals
excitation
crystal field theory
moments
interactions

Keywords

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

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Neutron scattering study on the field-induced antiferro-quadrupolar ordering in the heavy fermion superconductor PrOs4Sb12. / Metoki, N.; Kaneko, K.; Araki, Shingo; Kohgi, M.; Iwasa, K.; Kuwahara, K.; Bernhoeft, N.; Mignot, J. M.; Gukasov, A.; Sato, H.; Aoki, Y.; Sugawara, H.

In: Journal of Magnetism and Magnetic Materials, Vol. 272-276, No. SUPPL. 1, 05.2004.

Research output: Contribution to journal › Article

Metoki, N, Kaneko, K, Araki, S, Kohgi, M, Iwasa, K, Kuwahara, K, Bernhoeft, N, Mignot, JM, 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, vol. 272-276, no. SUPPL. 1. https://doi.org/10.1016/j.jmmm.2003.11.315
Metoki N, Kaneko K, Araki S, Kohgi M, Iwasa K, Kuwahara K et al. Neutron scattering study on the field-induced antiferro-quadrupolar ordering in the heavy fermion superconductor PrOs4Sb12. Journal of Magnetism and Magnetic Materials. 2004 May;272-276(SUPPL. 1). https://doi.org/10.1016/j.jmmm.2003.11.315
Metoki, N. ; Kaneko, K. ; Araki, Shingo ; Kohgi, M. ; Iwasa, K. ; Kuwahara, K. ; Bernhoeft, N. ; Mignot, J. M. ; Gukasov, A. ; Sato, H. ; Aoki, Y. ; Sugawara, H. / Neutron scattering study on the field-induced antiferro-quadrupolar ordering in the heavy fermion superconductor PrOs4Sb12. In: Journal of Magnetism and Magnetic Materials. 2004 ; Vol. 272-276, No. SUPPL. 1.
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AU - Araki, Shingo

AU - Kohgi, M.

AU - Iwasa, K.

AU - Kuwahara, K.

AU - Bernhoeft, N.

AU - Mignot, J. M.

AU - Gukasov, A.

AU - Sato, H.

AU - Aoki, Y.

AU - Sugawara, H.

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AB - 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.

KW - Heavy fermion

KW - Neutron scattering

KW - PrOsSb

KW - Quadrupolar ordering

KW - Superconductivity

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