Specific heat of CeNi2Ge2 in wide-range of temperatures

T. Kuwai; M. Takeuchi; T. Tsuchiya; Y. Isikawa; T. Fukuhara

doi:10.1016/j.jmmm.2003.11.061

Specific heat of CeNi₂Ge₂ in wide-range of temperatures

T. Kuwai^*, M. Takeuchi, T. Tsuchiya, Y. Isikawa, T. Fukuhara

^*この論文の責任著者

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

7 被引用数 (Scopus)

抄録

Specific heat up to 200 K from below 1 K for Ce(Ni/Pd)₂Ge ₂ single crystals is presented. The magnetic part of the specific heat for CeNi₂Ge₂ forms two broad peaks around 30 and 150 K. The crystal field excitation with Δ₁ = 200-280K and Δ₂ = 300-380 K is roughly estimated from analysis on the entropy balance under Kondo state with T_K = 30 K. Substitution of Ni-site by Pd makes T_K to reduce and a non-Fermi-liquid characteristics to change into an usual Kondo-type behavior with magnetic ordering at low temperatures beyond 10% substitution.

本文言語	英語
ページ（範囲）	68-69
ページ数	2
ジャーナル	Journal of Magnetism and Magnetic Materials
巻	272-276
号	I
DOI	https://doi.org/10.1016/j.jmmm.2003.11.061
出版ステータス	出版済み - 2004/05

ASJC Scopus 主題領域

電子材料、光学材料、および磁性材料
凝縮系物理学

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10.1016/j.jmmm.2003.11.061

引用スタイル

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title = "Specific heat of CeNi2Ge2 in wide-range of temperatures",

abstract = "Specific heat up to 200 K from below 1 K for Ce(Ni/Pd)2Ge 2 single crystals is presented. The magnetic part of the specific heat for CeNi2Ge2 forms two broad peaks around 30 and 150 K. The crystal field excitation with Δ1 = 200-280K and Δ2 = 300-380 K is roughly estimated from analysis on the entropy balance under Kondo state with TK = 30 K. Substitution of Ni-site by Pd makes TK to reduce and a non-Fermi-liquid characteristics to change into an usual Kondo-type behavior with magnetic ordering at low temperatures beyond 10% substitution.",

keywords = "CeNiGe, Crystal field, Non-Fermi-liquid, Specific heat",

author = "T. Kuwai and M. Takeuchi and T. Tsuchiya and Y. Isikawa and T. Fukuhara",

year = "2004",

month = may,

doi = "10.1016/j.jmmm.2003.11.061",

language = "英語",

volume = "272-276",

pages = "68--69",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

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number = "I",

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TY - JOUR

T1 - Specific heat of CeNi2Ge2 in wide-range of temperatures

AU - Kuwai, T.

AU - Takeuchi, M.

AU - Tsuchiya, T.

AU - Isikawa, Y.

AU - Fukuhara, T.

PY - 2004/5

Y1 - 2004/5

N2 - Specific heat up to 200 K from below 1 K for Ce(Ni/Pd)2Ge 2 single crystals is presented. The magnetic part of the specific heat for CeNi2Ge2 forms two broad peaks around 30 and 150 K. The crystal field excitation with Δ1 = 200-280K and Δ2 = 300-380 K is roughly estimated from analysis on the entropy balance under Kondo state with TK = 30 K. Substitution of Ni-site by Pd makes TK to reduce and a non-Fermi-liquid characteristics to change into an usual Kondo-type behavior with magnetic ordering at low temperatures beyond 10% substitution.

AB - Specific heat up to 200 K from below 1 K for Ce(Ni/Pd)2Ge 2 single crystals is presented. The magnetic part of the specific heat for CeNi2Ge2 forms two broad peaks around 30 and 150 K. The crystal field excitation with Δ1 = 200-280K and Δ2 = 300-380 K is roughly estimated from analysis on the entropy balance under Kondo state with TK = 30 K. Substitution of Ni-site by Pd makes TK to reduce and a non-Fermi-liquid characteristics to change into an usual Kondo-type behavior with magnetic ordering at low temperatures beyond 10% substitution.

KW - CeNiGe

KW - Crystal field

KW - Non-Fermi-liquid

KW - Specific heat

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U2 - 10.1016/j.jmmm.2003.11.061

DO - 10.1016/j.jmmm.2003.11.061

M3 - 学術論文

AN - SCOPUS:23044505286

SN - 0304-8853

VL - 272-276

SP - 68

EP - 69

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - I

ER -

Specific heat of CeNi2Ge2 in wide-range of temperatures

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ASJC Scopus 主題領域

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引用スタイル

Specific heat of CeNi₂Ge₂ in wide-range of temperatures