Crystal chemistry, Rietveld refinements and Raman spectroscopy studies of the new solid solution series: Ba3−xSrx(VO4)2 (0 ≤ x ≤ 3)
作者： M. Azdouz , Bouchaib Manoun , R. Essehli , M. Azrour , L. Bih
DOI: 10.1016/J.JALLCOM.2010.03.066
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摘要: Abstract The new solid solution series Ba3−xSrx(VO4)2 (0 ≤ x ≤3) has been synthesized and studied by a combination of X-ray powder diffraction Raman vibrational spectroscopy. This continuous crystallise in the hexagonal system with R 3 ¯ m space group. structure determined at room temperature from Rietveld method analysis. It is formed 3D network (Ba/Sr)(1)(VO4)24− layers linked into crystal (Ba/Sr)2+(2) cations. spectra this crystalline orthovanadate are interpreted means factor group analysis terms ( D d 5 ). Assignments V–O stretching bending modes, as well some external have made. While all modes show monotonous shift function composition x, break curves intensities, full width half maximum band areas x observed attributed to statistical distribution Ba Sr ions same crystallographic sites.
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