FIG. 7.
(a) Rietveld refinements of CeO2 powder. (b) Si 311 reflection profile fitting results. (c) FWHM as a function of 2θ of Si powder. The CeO2 and Si powder specimens were loaded in Lindeman glass capillaries with diameters of 0.1 mm and 0.2 mm, respectively. In order to reduce the sample absorption effect for the intensities from the cylindrical crystals, which is less than 1% at 2θ = 70°, we used the small capillary sizes.
