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首页> 外文期刊>Journal of Crystal Growth >Flux growth of ZnO crystals doped by transition metals
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Flux growth of ZnO crystals doped by transition metals

机译：过渡金属掺杂的ZnO晶体的通量生长

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摘要

ZnO crystals doped with Cr, Mn, Fe and Co were grown by the flux method. The prepared crystals revealed no phase separation detectable by X-ray diffraction. Structure properties were characterized by Raman and photoluminescence spectroscopy. For ZnO:Co, Mn and Cr, no spontaneous ferromagnetic moment was observed up to T= 2 K whereas for the ZnO:Fe crystals the m(H) curves suggest the existence of 5 nm superparamagnetic iron clusters. At low temperatures the m(H) curves can be interpreted as a superposition of major paramagnetic and minor antiferromagnetic contribution. The paramagnetic part corresponds to the presence of Co~(2+) , Fe~(3+), Mn~(2+) ions and small Cr atom clusters.
机译：通过助熔剂法生长了掺有Cr，Mn，Fe和Co的ZnO晶体。制备的晶体显示没有通过X射线衍射可检测到的相分离。通过拉曼光谱和光致发光光谱对结构性质进行表征。对于ZnO：Co，Mn和Cr，直到T = 2 K都没有观察到自发的铁磁矩，而对于ZnO：Fe晶体，m（H）曲线表明存在5 nm超顺磁性铁簇。在低温下，m（H）曲线可以解释为主要顺磁性和次要反铁磁性的叠加。顺磁性部分对应于Co〜（2 +），Fe〜（3 +），Mn〜（2+）离子和小的Cr原子簇的存在。

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  • 来源
    《Journal of Crystal Growth》 |2011年第1期|p.123-128|共6页
  • 作者

    Zdenek Sofer; David Sedmidubsky; Stepan Huber; Jin Hejtmanek; Miroslav Marysko; Karel Jurek; Martin Mikulics;

  • 作者单位

    Department of Inorganic Chemistry, Institute of Chemical Technology, Technicka 5, 166 28 Prague 6, Czech Republic;

    Department of Inorganic Chemistry, Institute of Chemical Technology, Technicka 5, 166 28 Prague 6, Czech Republic;

    Department of Inorganic Chemistry, Institute of Chemical Technology, Technicka 5, 166 28 Prague 6, Czech Republic,Institute of Physics of the ASCR, v.v.i., 162 00 Prague 6, Czech Republic;

    Institute of Physics of the ASCR, v.v.i., 162 00 Prague 6, Czech Republic;

    Institute of Physics of the ASCR, v.v.i., 162 00 Prague 6, Czech Republic;

    Institute of Physics of the ASCR, v.v.i., 162 00 Prague 6, Czech Republic;

    Institute of Bio- and Nanosystems (IBN-1), Research Centre Juelich, Germany,Juelich-Aachen Research Alliance, JARA, Fundamentals of Future Information Technology, Julich, 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

    A2. Growth from high temperature solutions; B1. Oxides; B1. Zinc compounds; B2. Magnetic materials; B2. Semiconducting Ⅱ-Ⅵ materials;

    机译：A2。从高温溶液中生长;B1。氧化物;B1。锌化合物;B2。磁性材料;B2。半导体Ⅱ-Ⅵ材料;

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