Magnetic excitations in the heavy-fermion superconductor PrOs 4Sb12

S. Raymond; J. Flouquet; K. Kuwahara; K. Iwasa; M. Kohgi; K. Kaneko; N. Metoki; H. Sugawara; Y. Aoki; H. Sato

doi:10.1016/j.physb.2005.01.256

Magnetic excitations in the heavy-fermion superconductor PrOs ₄Sb₁₂

S. Raymond, J. Flouquet, K. Kuwahara, K. Iwasa, M. Kohgi, K. Kaneko, N. Metoki, H. Sugawara, Y. Aoki, H. Sato

SCI - Physics

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The low-lying magnetic excitations of the unconventional heavy-fermion superconductor PrOs4Sb12 were studied by inelastic neutron scattering on single-crystalline sample. The crystal field excitation first evidenced at 0.7 meV on powder samples is found to have a minimum of energy at the zone boundary corresponding to the wave vector of antiferro-quadrupolar instability. The evolution of the magnetic excitation spectrum under magnetic field confirms the singlet ground state.

Original language	English
Pages (from-to)	898-900
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	359-361
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physb.2005.01.256
Publication status	Published - 2005 Apr 30

Keywords

Inelastic neutron scattering
PrOsSb
Unconventional superconductivity

ASJC Scopus subject areas

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

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title = "Magnetic excitations in the heavy-fermion superconductor PrOs 4Sb12",

abstract = "The low-lying magnetic excitations of the unconventional heavy-fermion superconductor PrOs4Sb12 were studied by inelastic neutron scattering on single-crystalline sample. The crystal field excitation first evidenced at 0.7 meV on powder samples is found to have a minimum of energy at the zone boundary corresponding to the wave vector of antiferro-quadrupolar instability. The evolution of the magnetic excitation spectrum under magnetic field confirms the singlet ground state.",

keywords = "Inelastic neutron scattering, PrOsSb, Unconventional superconductivity",

author = "S. Raymond and J. Flouquet and K. Kuwahara and K. Iwasa and M. Kohgi and K. Kaneko and N. Metoki and H. Sugawara and Y. Aoki and H. Sato",

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T1 - Magnetic excitations in the heavy-fermion superconductor PrOs 4Sb12

AU - Raymond, S.

AU - Flouquet, J.

AU - Kuwahara, K.

AU - Iwasa, K.

AU - Kohgi, M.

AU - Kaneko, K.

AU - Metoki, N.

AU - Sugawara, H.

AU - Aoki, Y.

AU - Sato, H.

PY - 2005/4/30

Y1 - 2005/4/30

N2 - The low-lying magnetic excitations of the unconventional heavy-fermion superconductor PrOs4Sb12 were studied by inelastic neutron scattering on single-crystalline sample. The crystal field excitation first evidenced at 0.7 meV on powder samples is found to have a minimum of energy at the zone boundary corresponding to the wave vector of antiferro-quadrupolar instability. The evolution of the magnetic excitation spectrum under magnetic field confirms the singlet ground state.

AB - The low-lying magnetic excitations of the unconventional heavy-fermion superconductor PrOs4Sb12 were studied by inelastic neutron scattering on single-crystalline sample. The crystal field excitation first evidenced at 0.7 meV on powder samples is found to have a minimum of energy at the zone boundary corresponding to the wave vector of antiferro-quadrupolar instability. The evolution of the magnetic excitation spectrum under magnetic field confirms the singlet ground state.

KW - Inelastic neutron scattering

KW - PrOsSb

KW - Unconventional superconductivity

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

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