Inter-atomic force constants of Ag2O from diffuse neutron scattering measurement

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Date
2012-10-04
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Elsevier Science BV.
Abstract
Diffuse neutron scattering measurements have been performed on powder Ag(2)O at 8 and 295 K with the use of High Resolution Powder Diffractometer installed at JRR-3 in Japan Atomic Energy Agency. Oscillatory diffuse scattering intensities are clearly observed at 8 and 295 K. The observed diffuse scattering intensities are explained by including the correlation effects among thermal displacements of atoms. The force constants among neighboring atoms in Ag(2)O are obtained from the values of correlation effects and Debye-Waller temperature parameters at 295 K. © 2012, Elsevier Ltd.
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Keywords
Diffuse scattering, Neutron diffraction, Correlations, Bragg reflection, Debye-Waller factor, Temperature range 0273-0400 K
Citation
Wada, T., Sakuma, T., Sakai, R., Uehara, H., Xianglian, Takahashi, H., Kamishima, O., Igawa, N., & Danilkin, S. A. (2012). Inter-atomic force constants of Ag2O from diffuse neutron scattering measurement. Solid State Ionics, 225 (S1), 18-21. doi:10.1016/j.ssi.2012.02.007
URI
http://dx.doi.org/10.1016/j.ssi.2012.02.007
 http://apo.ansto.gov.au/dspace/handle/10238/4860
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