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

doi:10.1016/j.jmmm.2003.11.315

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

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 language	English
Pages (from-to)	e91-e92
Journal	Journal of Magnetism and Magnetic Materials
Volume	272-276
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.jmmm.2003.11.315
Publication status	Published - May 1 2004
Externally published	Yes

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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10.1016/j.jmmm.2003.11.315

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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

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

In: Journal of Magnetism and Magnetic Materials, Vol. 272-276, No. SUPPL. 1, 01.05.2004, p. e91-e92.

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, pp. e91-e92. https://doi.org/10.1016/j.jmmm.2003.11.315

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. / 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. pp. e91-e92.

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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.",

keywords = "Heavy fermion, Neutron scattering, PrOsSb, Quadrupolar ordering, Superconductivity",

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AU - Metoki, N.

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AU - Araki, S.

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.

PY - 2004/5/1

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N2 - 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.

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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