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Takashi Sakuma
2Institute of Applied Beam Science, Ibaraki University, Mito 310-8512, Japan
Astronomy Chemistry Earth & Planetary Sciences Mathematics Physics

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Diffuse Neutron Scattering of KBr at Room Temperature and Its Application as Background Function in Rietveld Analysis Khairul Basar; Xianglian Xianglian; Takashi Sakuma; Haruyuki Takahashi; Naoki Igawa
Journal of Mathematical and Fundamental Sciences Vol. 41 No. 1 (2009)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.sci.2009.41.1.5

Abstract

Diffuse neutron scattering from powder KBr was measured at room temperature. The oscillatory diffuse scattering is clearly observed. The diffuse scattering theory including correlation effects among thermal displacements of atoms is applied to background function in the Rietveld analysis. The observed scattering data are analyzed by including the correlation effects among thermal displacements of first, second and third nearest neighboring atoms. The inter-atomic distance and temperature dependence of the values of correlation effects is discussed.
Co-Authors Haruyuki Takahashi Khairul Basar Naoki Igawa Xianglian Xianglian