Local structure around Pd atoms in Pd42.5Ni7.5Cu30P20 excellent glass-former studied by anomalous X-ray scattering

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  • Hosokawa Shinya
    Institut für Physikalische-, Kern-, und Makromolekulare Chemie, Philipps Universität Marburg Center for Materials Research using Third-Generation Synchrotron Radiation Facilities, Hiroshima Institute of Technology
  • Bérar Jean-François
    Institut Néel, CNRS
  • Boudet Nathalie
    Institut Néel, CNRS
  • Ichitsubo Tetsu
    Department of Materials Science and Engineering, Graduate School of Engineering, Kyoto University
  • Matsubara Eiichiro
    Department of Materials Science and Engineering, Graduate School of Engineering, Kyoto University
  • Nishiyama Nobuyuki
    R&D Institute of Metals and Composites for Future Industries (RIMCOF)

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  • Local Structure around Pd Atoms in Pd<SUB>42.5</SUB>Ni<SUB>7.5</SUB>Cu<SUB>30</SUB>P<SUB>20</SUB> Excellent Glass-Former Studied by Anomalous X-ray Scattering

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In order to study local structure around the Pd atoms in Pd42.5Ni7.5Cu30P20 excellent metallic glass-former, an anomalous X-ray scattering (AXS) experiment was performed at energies close to the Pd K absorption edge at the beamline BM02 of the European Synchrotron Radiation Facility. The differential structure factor, ΔPdS(Q), was obtained with a good statistical quality, which demonstrates that a pre-shoulder at about 20 nm−1, indicating the existence of an intermediate-range order, originates from the Pd-Pd atomic correlation. The first peak in the differential pair correlation function, ΔPdg(r), shows a longer inter-atomic length around the Pd atoms than the average value. The local structure around the Pd atoms is discussed in detail by comparing to the previous experiments of AXS and electronic structure.

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