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首页> 外文期刊>Journal of Crystal Growth >Crystal growth of the Pr_2PdSi_3 intermetallic compound
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Crystal growth of the Pr_2PdSi_3 intermetallic compound

机译:Pr_2PdSi_3金属间化合物的晶体生长

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摘要

Pr_2PdSi_3 single crystals were grown by a vertical floating zone method with radiation heating at a zone traveling rate of 3 mm/h. The compound exhibits congruent melting behavior at a liquidus temperature of about 1770 ℃. The slightly Pd-depleted composition of the crystal, with respect to the nominal Pr_2PdSi_3 stoichiometry, led to gradual accumulation of Pd in the traveling zone and to a decreasing operating temperature during the growth process. Thin platelet-like precipitates of a PrSi phase were detected in the crystal matrix. Single crystalline samples exhibit a huge anisotropy due to the crystal electric field effect and order antiferromagnetically below the Neel temperature T_N=2.17 K. The [110] orientation was identified as the magnetic easy axis at room temperature. At lower temperature (~20K) magnetic easy and hard axes interchange with each other. Two additional magnetic phase transitions are observed at temperatures below 1 K.
机译:通过辐射加热以3mm / h的区域行进速度通过垂直浮区法生长Pr_2PdSi_3单晶。该化合物在液相线温度约1770℃时表现出全同的熔融行为。相对于标称的Pr_2PdSi_3化学计量,晶体中Pd的贫乏成分导致Pd在行进区域逐渐积累,并导致生长过程中的工作温度降低。在晶体基质中检测到PrSi相的薄片状沉淀。由于晶体电场效应,单晶样品表现出巨大的各向异性,并且在Neel温度T_N = 2.17 K以下时反铁磁有序。[110]取向被确定为室温下的易磁化轴。在较低温度(〜20K)下,磁易轴和硬轴相互交换。在低于1 K的温度下观察到两个其他的磁相变。

著录项

  • 来源
    《Journal of Crystal Growth》 |2010年第13期|P.1992-1996|共5页
  • 作者单位

    IFW Dresden, Leibniz-Institut fuer Festkoerper- und Werkstoffforschung, Helmholtzstr. 20, D-01171 Dresden, Germany State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, PR China;

    rnIFW Dresden, Leibniz-Institut fuer Festkoerper- und Werkstoffforschung, Helmholtzstr. 20, D-01171 Dresden, Germany;

    IFW Dresden, Leibniz-Institut fuer Festkoerper- und Werkstoffforschung, Helmholtzstr. 20, D-01171 Dresden, Germany;

    rnInstitut fuer Festkoerperphysik, Technische Universitaet Dresden, 01062 Dresden, Germany;

    rnInstitut fuer Festkoerperphysik, Technische Universitaet Dresden, 01062 Dresden, Germany;

    rnIFW Dresden, Leibniz-Institut fuer Festkoerper- und Werkstoffforschung, Helmholtzstr. 20, D-01171 Dresden, Germany;

    rnState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A2. Floating zone technique; A2. Single crystal growth; B1. Rare earth compounds; B2. Magnetic materials;

    机译:A2。浮动区技术;A2。单晶生长;B1。稀土化合物;B2。磁性材料;

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