Magnetic Structure of Ce(Ni1-xPdx)2Ge 2 Proximate to the Magnetic Instability

Tadashi Fukuhara; Hiroaki Kadowaki; Naofumi Aso; Tetsuya Takeuchi; Tomohiko Kuwai; Junji Sakurai; Kunihiko Maezawa

doi:10.1143/JPSJ.71.1360

Magnetic Structure of Ce(Ni_1-xPd_x)₂Ge ₂ Proximate to the Magnetic Instability

Tadashi Fukuhara^*, Hiroaki Kadowaki, Naofumi Aso, Tetsuya Takeuchi, Tomohiko Kuwai, Junji Sakurai, Kunihiko Maezawa

^*Corresponding author for this work

Department of Physics

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

8 Scopus citations

Abstract

The magnetic structure of heavy-fermion antiferromagnets Ce(Ni _1-xPd_x)₂Ge₂ proximate to the magnetic instability has been studied by elastic neutron scattering using single crystals. For Ce(Ni_0.65Pd_0.35)₂Ge ₂, antiferromagnetic ordering with an incommensurate propagation vector q = (1/2, 1/2, δ); δ ∼ 0.16 is observed below T _N = 3.4 K. The integrated intensities of magnetic Bragg peaks at 1.8 K are well fitted by assuming a sine-wave-modulated structure with the amplitude 0.55 ± 0.04 μ_B and magnetic moments along [110]. For the compound very near the magnetic instability, Ce(Ni_0.90Pd _0.10)₂Ge₂, the ordered moment is expected to be reduced to below 0.1 μ_B.

Original language	English
Pages (from-to)	1360-1364
Number of pages	5
Journal	Journal of the Physical Society of Japan
Volume	71
Issue number	5
DOIs	https://doi.org/10.1143/JPSJ.71.1360
State	Published - 2002/05

Keywords

Ce(NiPd )Ge
Magnetic instability
Magnetic structure
Neutron diffraction

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1143/JPSJ.71.1360

Cite this

@article{48affb7098874bb7a114aa27c11f03dc,

title = "Magnetic Structure of Ce(Ni1-xPdx)2Ge 2 Proximate to the Magnetic Instability",

abstract = "The magnetic structure of heavy-fermion antiferromagnets Ce(Ni 1-xPdx)2Ge2 proximate to the magnetic instability has been studied by elastic neutron scattering using single crystals. For Ce(Ni0.65Pd0.35)2Ge 2, antiferromagnetic ordering with an incommensurate propagation vector q = (1/2, 1/2, δ); δ ∼ 0.16 is observed below T N = 3.4 K. The integrated intensities of magnetic Bragg peaks at 1.8 K are well fitted by assuming a sine-wave-modulated structure with the amplitude 0.55 ± 0.04 μB and magnetic moments along [110]. For the compound very near the magnetic instability, Ce(Ni0.90Pd 0.10)2Ge2, the ordered moment is expected to be reduced to below 0.1 μB.",

keywords = "Ce(NiPd )Ge, Magnetic instability, Magnetic structure, Neutron diffraction",

author = "Tadashi Fukuhara and Hiroaki Kadowaki and Naofumi Aso and Tetsuya Takeuchi and Tomohiko Kuwai and Junji Sakurai and Kunihiko Maezawa",

year = "2002",

month = may,

doi = "10.1143/JPSJ.71.1360",

language = "英語",

volume = "71",

pages = "1360--1364",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "The Physical Society of Japan",

number = "5",

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TY - JOUR

T1 - Magnetic Structure of Ce(Ni1-xPdx)2Ge 2 Proximate to the Magnetic Instability

AU - Fukuhara, Tadashi

AU - Kadowaki, Hiroaki

AU - Aso, Naofumi

AU - Takeuchi, Tetsuya

AU - Kuwai, Tomohiko

AU - Sakurai, Junji

AU - Maezawa, Kunihiko

PY - 2002/5

Y1 - 2002/5

N2 - The magnetic structure of heavy-fermion antiferromagnets Ce(Ni 1-xPdx)2Ge2 proximate to the magnetic instability has been studied by elastic neutron scattering using single crystals. For Ce(Ni0.65Pd0.35)2Ge 2, antiferromagnetic ordering with an incommensurate propagation vector q = (1/2, 1/2, δ); δ ∼ 0.16 is observed below T N = 3.4 K. The integrated intensities of magnetic Bragg peaks at 1.8 K are well fitted by assuming a sine-wave-modulated structure with the amplitude 0.55 ± 0.04 μB and magnetic moments along [110]. For the compound very near the magnetic instability, Ce(Ni0.90Pd 0.10)2Ge2, the ordered moment is expected to be reduced to below 0.1 μB.

AB - The magnetic structure of heavy-fermion antiferromagnets Ce(Ni 1-xPdx)2Ge2 proximate to the magnetic instability has been studied by elastic neutron scattering using single crystals. For Ce(Ni0.65Pd0.35)2Ge 2, antiferromagnetic ordering with an incommensurate propagation vector q = (1/2, 1/2, δ); δ ∼ 0.16 is observed below T N = 3.4 K. The integrated intensities of magnetic Bragg peaks at 1.8 K are well fitted by assuming a sine-wave-modulated structure with the amplitude 0.55 ± 0.04 μB and magnetic moments along [110]. For the compound very near the magnetic instability, Ce(Ni0.90Pd 0.10)2Ge2, the ordered moment is expected to be reduced to below 0.1 μB.

KW - Ce(NiPd )Ge

KW - Magnetic instability

KW - Magnetic structure

KW - Neutron diffraction

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U2 - 10.1143/JPSJ.71.1360

DO - 10.1143/JPSJ.71.1360

M3 - 学術論文

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VL - 71

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JO - Journal of the Physical Society of Japan

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