In-Plane Positional Fluctuations of Zinc Atoms in Single Crystal Mg<sub>85</sub>Zn<sub>6</sub>Y<sub>9</sub> Alloy Studied by X-ray Fluorescence Holography

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Author(s)

    • Kimura Koji
    • Department of Physical Science and Engineering, Nagoya Institute of Technology
    • Hayashi Kouichi
    • Department of Physical Science and Engineering, Nagoya Institute of Technology
    • Hagihara Koji
    • Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University
    • Izuno Hitoshi
    • Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University
    • Happo Naohisa
    • Department of Computer and Network Engineering, Graduate School of Information Sciences, Hiroshima City University
    • Tajiri Hiroo
    • Japan Synchrotron Radiation Research Institute (JASRI), SPring-8

Abstract

<p>We performed X-ray fluorescence holography measurements on a single crystal Mg<sub>85</sub>Zn<sub>6</sub>Y<sub>9</sub> alloy, having a synchronized 18R long period stacking ordered structure, and successfully obtained Zn Kα holograms. The reconstruction shows "U"-shaped atomic images in remarkable contrast to the prediction of an existing model with Zn<sub>6</sub>Y<sub>8</sub> L1<sub>2</sub> clusters. To explain this feature we calculated holograms using a model with positional fluctuations, and fit the reconstruction to the experimental results. It was found that large rotational fluctuations of the clusters can explain the "U"-shaped images.</p>

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 58(4), 539-542, 2017

    The Japan Institute of Metals and Materials

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