Elastic properties of the Kondo compounds CexLa 1-xB6 (x = 0.75 and 0.70)

Mitsuhiro Akatsu; Yuichi Nemoto; Terutaka Goto; Osamu Suzuki; Shintaro Nakamura; Satoru Kunii

doi:10.1016/S0921-4526(02)02529-2

Elastic properties of the Kondo compounds Ce_xLa _1-xB₆ (x = 0.75 and 0.70)

Mitsuhiro Akatsu, Yuichi Nemoto, Terutaka Goto, Osamu Suzuki, Shintaro Nakamura, Satoru Kunii

Institute for Materials Research (IMR) (institute affiliation only)

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

Abstract

We have made thermal expansion measurements to examine the characters of an ordered phase IV in the dense Kondo compounds Ce_xLa _1-xB₆ (x = 0.75, 0.70). For both compounds, expansion along the [0 0 1] direction and shrinkage along [1 1 1] with decreasing temperature have been observed in phase IV. These results indicate the lattice distortion from cubic to trigonal structure. A ferro-quadrupole ordering of O_yz, O_zx, O_xy with Γ5 symmetry is a probable candidate for the order parameter of the phase IV.

Original language	English
Pages (from-to)	626-627
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	329-333
Issue number	II
DOIs	https://doi.org/10.1016/S0921-4526(02)02529-2
Publication status	Published - 2003 May

Keywords

CeLaB
Kondo compound
Quadrupole ordering
Thermal expansion

ASJC Scopus subject areas

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

Access to Document

10.1016/S0921-4526(02)02529-2

Cite this

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title = "Elastic properties of the Kondo compounds CexLa 1-xB6 (x = 0.75 and 0.70)",

abstract = "We have made thermal expansion measurements to examine the characters of an ordered phase IV in the dense Kondo compounds CexLa 1-xB6 (x = 0.75, 0.70). For both compounds, expansion along the [0 0 1] direction and shrinkage along [1 1 1] with decreasing temperature have been observed in phase IV. These results indicate the lattice distortion from cubic to trigonal structure. A ferro-quadrupole ordering of Oyz, Ozx, Oxy with Γ5 symmetry is a probable candidate for the order parameter of the phase IV.",

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author = "Mitsuhiro Akatsu and Yuichi Nemoto and Terutaka Goto and Osamu Suzuki and Shintaro Nakamura and Satoru Kunii",

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T1 - Elastic properties of the Kondo compounds CexLa 1-xB6 (x = 0.75 and 0.70)

AU - Akatsu, Mitsuhiro

AU - Nemoto, Yuichi

AU - Goto, Terutaka

AU - Suzuki, Osamu

AU - Nakamura, Shintaro

AU - Kunii, Satoru

PY - 2003/5

Y1 - 2003/5

N2 - We have made thermal expansion measurements to examine the characters of an ordered phase IV in the dense Kondo compounds CexLa 1-xB6 (x = 0.75, 0.70). For both compounds, expansion along the [0 0 1] direction and shrinkage along [1 1 1] with decreasing temperature have been observed in phase IV. These results indicate the lattice distortion from cubic to trigonal structure. A ferro-quadrupole ordering of Oyz, Ozx, Oxy with Γ5 symmetry is a probable candidate for the order parameter of the phase IV.

AB - We have made thermal expansion measurements to examine the characters of an ordered phase IV in the dense Kondo compounds CexLa 1-xB6 (x = 0.75, 0.70). For both compounds, expansion along the [0 0 1] direction and shrinkage along [1 1 1] with decreasing temperature have been observed in phase IV. These results indicate the lattice distortion from cubic to trigonal structure. A ferro-quadrupole ordering of Oyz, Ozx, Oxy with Γ5 symmetry is a probable candidate for the order parameter of the phase IV.

KW - CeLaB

KW - Kondo compound

KW - Quadrupole ordering

KW - Thermal expansion

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