Low-temperature magnetization study of the heavy-electron systems

T. Sakakibara; T. Tayama; H. Amitsuka; K. Tenya; S. Kunii; T. Suzuki; A. Ochiai

doi:10.1016/S0921-4526(96)00693-X

Low-temperature magnetization study of the heavy-electron systems

T. Sakakibara^*, T. Tayama, H. Amitsuka, K. Tenya, S. Kunii, T. Suzuki, A. Ochiai

^*Corresponding author for this work

Department of Physics

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

24 Scopus citations

Abstract

The ground-state magnetic properties of Ce_0.75La_0.25B₆ and Sm₃Te₄ have been studied by means of static magnetization measurements at very low temperatures T ≥ 50 mK. In Ce_0.75La_0.25B₆, the H-T phase diagram reveals three different ordered phases: in addition to the two phases (phase II and III) known for CeB₆, a new antiferromagnetic state appears before the antiferro-quadrupolar order sets in. In the valence fluctuation compound Sm₃Te₄, a spin-glass ordering is evidenced at T_g ∼ 1.3 K. It is likely that the two valence states (Sm²⁺, Sm³⁺) are randomly frozen at low temperature to form effectively a randomly diluted magnet.

Original language	English
Pages (from-to)	307-309
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	230-232
DOIs	https://doi.org/10.1016/S0921-4526(96)00693-X
State	Published - 1997/02

Keywords

CeLaB
Magnetic order
Mixed valence
SmTe

ASJC Scopus subject areas

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

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10.1016/S0921-4526(96)00693-X

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@article{9e7ba2a81cc543c6a85404d1c833ddc2,

title = "Low-temperature magnetization study of the heavy-electron systems",

abstract = "The ground-state magnetic properties of Ce0.75La0.25B6 and Sm3Te4 have been studied by means of static magnetization measurements at very low temperatures T ≥ 50 mK. In Ce0.75La0.25B6, the H-T phase diagram reveals three different ordered phases: in addition to the two phases (phase II and III) known for CeB6, a new antiferromagnetic state appears before the antiferro-quadrupolar order sets in. In the valence fluctuation compound Sm3Te4, a spin-glass ordering is evidenced at Tg ∼ 1.3 K. It is likely that the two valence states (Sm2+, Sm3+) are randomly frozen at low temperature to form effectively a randomly diluted magnet.",

keywords = "CeLaB, Magnetic order, Mixed valence, SmTe",

author = "T. Sakakibara and T. Tayama and H. Amitsuka and K. Tenya and S. Kunii and T. Suzuki and A. Ochiai",

year = "1997",

month = feb,

doi = "10.1016/S0921-4526(96)00693-X",

language = "英語",

volume = "230-232",

pages = "307--309",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Low-temperature magnetization study of the heavy-electron systems

AU - Sakakibara, T.

AU - Tayama, T.

AU - Amitsuka, H.

AU - Tenya, K.

AU - Kunii, S.

AU - Suzuki, T.

AU - Ochiai, A.

PY - 1997/2

Y1 - 1997/2

N2 - The ground-state magnetic properties of Ce0.75La0.25B6 and Sm3Te4 have been studied by means of static magnetization measurements at very low temperatures T ≥ 50 mK. In Ce0.75La0.25B6, the H-T phase diagram reveals three different ordered phases: in addition to the two phases (phase II and III) known for CeB6, a new antiferromagnetic state appears before the antiferro-quadrupolar order sets in. In the valence fluctuation compound Sm3Te4, a spin-glass ordering is evidenced at Tg ∼ 1.3 K. It is likely that the two valence states (Sm2+, Sm3+) are randomly frozen at low temperature to form effectively a randomly diluted magnet.

AB - The ground-state magnetic properties of Ce0.75La0.25B6 and Sm3Te4 have been studied by means of static magnetization measurements at very low temperatures T ≥ 50 mK. In Ce0.75La0.25B6, the H-T phase diagram reveals three different ordered phases: in addition to the two phases (phase II and III) known for CeB6, a new antiferromagnetic state appears before the antiferro-quadrupolar order sets in. In the valence fluctuation compound Sm3Te4, a spin-glass ordering is evidenced at Tg ∼ 1.3 K. It is likely that the two valence states (Sm2+, Sm3+) are randomly frozen at low temperature to form effectively a randomly diluted magnet.

KW - CeLaB

KW - Magnetic order

KW - Mixed valence

KW - SmTe

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U2 - 10.1016/S0921-4526(96)00693-X

DO - 10.1016/S0921-4526(96)00693-X

M3 - 学術論文

AN - SCOPUS:0031069348

SN - 0921-4526

VL - 230-232

SP - 307

EP - 309

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -

Low-temperature magnetization study of the heavy-electron systems

Abstract

Keywords

ASJC Scopus subject areas

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