Inter atomic force constants of -PbF $_{2}$ from diffuse neutron scattering measurement

Xianglian*; Bao, W.*; Guo, T.*; Li, P.*; Sakuma, Takashi*; Igawa, Naoki

Diffuse neutron scattering measurements were performed on powder -PbF $_{2}$ at 633 K. Oscillatory diffuse scattering intensities were observed and the observed diffuse scattering intensities were explained by including the correlation effects among thermal displacements of atoms. The force constants among first- and second-nearest-neighboring atoms in -PbF $_{2}$ calculated from the values of correlation effects and Debye-Waller temperature parameters were determined as 0.36 eV/ $AA $^{2}$$ at = 2.599 and 0.21 eV/ $AA $^{2}$$ at = 3.001 AA, respectively.

Language	:	English
Journal	:	International Journal of Innovation in Science and Mathematics
Volume	:	5
Number	:	6
Pages	:	p.165 - 167
Publication Year/Month	:	2017/11
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Keywords	:	no keyword
Research Facility	:	JRR-3M(研究炉3)
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Registration No. : AA20170471
JAEA Abstracts No. : 45001308
Paper Submission No. : 19534

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Inter atomic force constants of -PbF from diffuse neutron scattering measurement

Inter atomic force constants of -PbF $_{2}$ from diffuse neutron scattering measurement