Cluster Size Effect of X-Ray Fluorescence Hologram Simulation Using Sr<sub>0.95</sub>La<sub>0.05</sub>TiO<sub>3</sub>

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Author(s)

    • Ebisu Yoshihiro
    • Graduate School of Science and Technology, Hiroshima Institute of Technology
    • Happo Naohisa
    • Graduate School of Information Sciences, Hiroshima City University
    • Ozaki Tōru
    • Graduate School of Science and Technology, Hiroshima Institute of Technology

Abstract

<p>We simulated La <i>L</i><sub><i>γ</i>1</sub> X-ray fluorescence holography (La <i>L</i><sub><i>γ</i>1</sub> XFH) on a spherical cluster model of Sr<sub>0.95</sub>La<sub>0.05</sub>TiO<sub>3</sub>. As the radius of the model <i>r</i><sub>c</sub> increased from 10 Å to 200 Å, the simulated hologram pattern became finer and sharper. The X-ray standing wave lines in the simulated hologram of the model with <i>r</i><sub>c</sub> = 200 Å reproduced those in the experimentally obtained hologram well. Because the X-ray fluorescence hologram is defined as a function on a spherical surface, we estimate the fineness of the pattern by calculating the power spectrum with the spherical harmonics transform. The power spectrum of the holographic oscillations of the experimentally obtained hologram shows no cutoff below the Nyquist frequency. The power spectra of the models with 60 Å ≤ <i>r</i><sub>c</sub> ≤ 200 Å do not show cutoffs either. These indicate that the radius of the cluster model <i>r</i><sub>c</sub> should be set at least 200 Å to reproduce the experimentally obtained hologram of Sr<sub>0.95</sub>La<sub>0.05</sub>TiO<sub>3</sub>.</p>

Journal

  • Transactions of the Materials Research Society of Japan

    Transactions of the Materials Research Society of Japan 44(2), 75-78, 2019

    The Materials Research Society of Japan

Codes

  • NII Article ID (NAID)
    130007622612
  • Text Lang
    ENG
  • ISSN
    1382-3469
  • Data Source
    J-STAGE 
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