Effect of La doping to magnetically mediated superconductor CeIn3

La掺杂对磁介导超导体CeIn3的影响

• 批准号: 18540344
• 负责人: EBIHARA Takao
• 金额: $ 1.61万
• 依托单位: Shizuoka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18540344/
• 关键词: magnetically mediated superconductivity; Quantum Critical Point; CeIn3; spin fluctuation; La doping; x-T相図; 磁気媒介超伝導; La置換; 強相関電子系; スピンの揺らぎ; 量子臨界点

Investigating the mechanism of superconductivity emerging near Quantum Critical Point (QCP) is a focus of condensed matter physics. Magnetically mediated superconductor CeIn3 is a typical example. Our purpose is to clarify how the 4f electron contributes to the emergence of superconductivity of CeIn3 and magnetic properties of CeIn3 For the purpose we controlled the 4f electron numbers with doping non felectron ion La for mapping x-T phase diagram.We achieved 1. making 'single crystals of La doped CeIn3 with various concentration and 2. construction of electrical resistivity measurement system under pressure (p<3GP) that are listed in research proposal. As a result, we draw x-T phase diagram and opened the way to map x-T-p phase diagram.The x-T phase diagram contributes to deeper understanding of magnetically mediated superconductivity in CeIn3.s

研究在量子临界点附近出现的超导性的机制是凝结物理学的重点。磁介导的超导体Cein3是一个典型的例子。 Our purpose is to clarify how the 4f electron contributes to the emergence of superconductivity of CeIn3 and magnetic properties of CeIn3 For the purpose we controlled the 4f electron numbers with doping non felectron ion La for mapping x-T phase diagram.We achieved 1. making 'single crystals of La doped CeIn3 with various concentration and 2. construction of electrical resistivity measurement system under pressure (p<3GP) that are listed in研究建议。结果，我们绘制X-T相图并为映射X-T-P相图开辟了道路。X-T相图有助于更深入地了解CEIN3.S中磁介导的超导性。

项目成果

Fermi surface of CeIn3 above the neel critical field

• DOI: 10.1103/physrevlett.99.056401
• 发表时间: 2007-08-03
• 期刊: PHYSICAL REVIEW LETTERS
• 影响因子: 8.6
• 作者: Harrison, N.;Sebastian, S. E.;Ebihara, T.
• 通讯作者: Ebihara, T.

Mid-infrared absorption in strongly correlated Yb compounds

强相关 Yb 化合物的中红外吸收

• 发表时间: 2006
• 期刊: Physica 378-380
• 作者: H. Okamura;T. Watanabe;N. Tsujii;T. Ebihara;T. Nanba
• 通讯作者: T. Nanba

The magnetoresistance of ferromagnet CePd_2Ga_3 under high pressure

高压下铁磁体CePd_2Ga_3的磁阻

• 发表时间: 2007
• 期刊: J. Magn. Magn. Mat 310
• 作者: T. Kanemasa;A. Miyake;T. Kagayama;K. Shimizu;K. Tezuka;T. Ebihara
• 通讯作者: T. Ebihara

La希釈CeIn3におけるフェルミ面

La 稀 CeIn3 中的费米面

• 发表时间: 2008
• 作者: A.V.Silhanek;T.Ebihara;N.Harrison;M.Jaime;K.Tezuka;V.Fanelli;C.D.Batista;D.X.Li;海老原孝雄
• 通讯作者: 海老原孝雄

Reduction of Neel temperature of CeIn_3 by La doping

La掺杂降低CeIn_3的尼尔温度

• 发表时间: 2007
• 期刊: J. Magn. Magn. Mat 310
• 作者: Y. Iwamoto;T. Ebihara;N. Harrison;M. Jaime;A. Silhanek;K. Tezuka;K. Morishita;T. Terashima;A. Iyo
• 通讯作者: A. Iyo