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首页> 外文期刊>Physical review >Reconciling the Pauling bond length picture and Vegard's law in a mixed crystal: An x-ray fluorescence holographic study
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Reconciling the Pauling bond length picture and Vegard's law in a mixed crystal: An x-ray fluorescence holographic study

机译：在混合晶体中调和鲍林键长图和维加德定律：X射线荧光全息研究

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摘要

In order to bridge experimental results for the atomic structure in mixed crystals between x-ray diffraction showing a Vegard's law and x-ray absorption fine structure spectroscopy indicating preservations of each Pauling's bond length, an x-ray fluorescence holography (XFH) experiment was carried out on Zn_(0.4)Mn_(0.6)Te single crystal for drawing a three-dimensional atomic image around the Zn atom. The XFH image intensities of Te atoms in Zn_(0.4)Mn_(0.6)Te with respect to the reference ZnTe are almost constant beyond the five chemical bonds from the central Zn atom, while the nearer Te atomic images are much weaker, indicating that the Pauling's bond length interconnects with Vegard's law at about five chemical bonds. The randomness of the atomic positions is well explained by a locomotive wheel atomic configuration model.
机译：为了在显示维加德定律的x射线衍射和表明保留每个鲍林键长的x射线吸收精细结构光谱学之间架桥混合晶体中原子结构的实验结果，进行了x射线荧光全息（XFH）实验在单晶Zn_（0.4）Mn_（0.6）Te上绘制出来，以在Zn原子周围绘制三维原子图像。 Zn_（0.4）Mn_（0.6）Te中的Te原子相对于参考ZnTe的XFH图像强度在中心Zn原子的五个化学键之外几乎保持恒定，而较近的Te原子图像则弱得多，表明鲍林的键长与约5个化学键的维格德定律相互关联。机车车轮原子构型模型很好地解释了原子位置的随机性。

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  • 来源
    《Physical review》 |2009年第13期|134123.1-134123.7|共7页
  • 作者

    Shinya Hosokawa; Naohisa Happo; Kouichi Hayashi;

  • 作者单位

    Center for Materials Research Using Third-Generation Synchrotron Radiation Facilities, Hiroshima Institute of Technology, Hiroshima 731-5193, Japan;

    Graduate School of Information Sciences, Hiroshima City University, Hiroshima 731-3194, Japan;

    Institute of Materials Research, Tohoku University, Sendai 980-8577, Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    crystalline state; inorganic compounds;

    机译：结晶态无机化合物;

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