Inter Atomic Force Constants of β-PbF2 from Diffuse Neutron Scattering Measurement

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Year:
2017
Type of Publication:
Article
Keywords:
Correlation Effects, Diffuse Scattering, Force Constants, Neutron Diffraction
Authors:
  • Xianglian
  • Wenxiu Bao
  • Tiantian Guo
  • Peifang Li
  • Takashi Sakuma
  • Naoki Igawa
Journal:
IJISM
Volume:
5
Number:
6
Pages:
165-167
Month:
November
ISSN:
2347-9051
Abstract:
Diffuse neutron scattering measurements were performed on powder β-PbF2 at 633 K with the use of high resolution powder diffractometer installed at JRR-3 in Japan Atomic Energy Agency. Oscillatory diffuse scattering intensities were observed at 633 K. The observed diffuse scattering intensities were explained by including the correlation effects among thermal displacements of atoms. The force constants among neighboring atoms in β-PbF2 were calculated from the values of correlation effects and Debye–Waller temperature parameters
Full text: IJISM_689_FINAL.pdf

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