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首页> 外文期刊>Journal of Crystal Growth >Single crystal growth of the ErPd_2Si_2 intermetallic compound
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Single crystal growth of the ErPd_2Si_2 intermetallic compound

机译:ErPd_2Si_2金属间化合物的单晶生长

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摘要

Bulk single crystals of ErPd_2Si_2 with ThCr_2Si_2-type body-centered tetragonal structure have been successfully grown under a purified Ar atmosphere at a velocity of 10 mm/h using a floating zone method with optical radiation heating. The preferred crystal growth direction is close to the [110] orientation with an inclination angle of 15° against the rod axis. The as-grown crystals are Pd-depleted with respect to their nominal stoichiometry ErPd_2Si_2. The crystals contain small Er-oxide particles. The single-crystalline specimen shows antiferromagnetic ordering indicated by a X-type singularity of the specific heat capacity c_p(T) at T_N=3A K. A broad anomaly around 15-20 K in the magnetic contribution to c_p(T) indicates two-level Schottky-type behavior similar to that of PrPd_2Si_2.
机译:使用光辐射加热的浮区法,在纯Ar气氛下,以10mm / h的速度成功生长了具有ThCr_2Si_2型体心四方结构的ErPd_2Si_2块状单晶。优选的晶体生长方向接近[110]取向,相对于棒轴的倾斜角为15°。相对于其标称化学计量ErPd_2Si_2,刚生长的晶体贫了Pd。晶体含有小的Er氧化物颗粒。单晶试样显示反铁磁有序性,由T_N = 3A K时的比热容c_p(T)的X型奇异性表示。在对c_p(T)的磁性贡献中,大约15-20 K的宽异常表明:肖特基型行为类似于PrPd_2Si_2。

著录项

  • 来源
    《Journal of Crystal Growth》 |2014年第1期|601-604|共4页
  • 作者单位

    Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, PR China,Leibniz-Institut fuer Festkoerper- und Werkstoffforschung (IFW) Dresden, Postfach 270116, D-01171 Dresden, Germany,State Key Laboratory of Solidification of China, School of Materials Science and Engineering, Xi'an 710072, PR China;

    Kirchhoff Institute for Physics, Heidelberg University, D-69120 Heidelberg, Germany;

    Leibniz-Institut fuer Festkoerper- und Werkstoffforschung (IFW) Dresden, Postfach 270116, D-01171 Dresden, Germany;

    Leibniz-Institut fuer Festkoerper- und Werkstoffforschung (IFW) Dresden, Postfach 270116, D-01171 Dresden, Germany;

    Leibniz-Institut fuer Festkoerper- und Werkstoffforschung (IFW) Dresden, Postfach 270116, D-01171 Dresden, Germany;

  • 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

    A1. Single crystal growth; A2. Floating zone technique; B1. Rare earth compounds; B2. Magnetic materials;

    机译:A1。单晶生长;A2。浮动区技术;B1。稀土化合物;B2。磁性材料;

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