Crystal chemistry, Rietveld refinements and Raman spectroscopy studies of the new solid solution series

Ba3-xSrx(VO4)2 (0 ≤ x ≤ 3)

M. Azdouz, Bouchaib Manoun, Rachid Essehli, M. Azrour, L. Bih, S. Benmokhtar, A. Aït Hou, P. Lazor

Research output: Contribution to journalArticle

10 Citations (Scopus)

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 and Raman vibrational spectroscopy. This continuous solid solution crystallise in the hexagonal system with R over(3, ̄) m space group. The structure has been determined at room temperature from X-ray diffraction by the Rietveld method analysis. It is formed by a 3D network of (Ba/Sr)(1)(VO4)2 4- layers linked into a crystal network by (Ba/Sr)2+ (2) cations. The vibrational spectra of this crystalline orthovanadate solid solution series are interpreted by means of factor group analysis in terms of space group R over(3, ̄) m (D3 d 5). Assignments of the V-O vibrational stretching and bending modes, as well as some of the external modes, have been made. While all the modes show a monotonous shift as a function of the composition x, a break in the curves of intensities, full width at half maximum and band areas as a function of x is observed and attributed to the statistical distribution of Ba and Sr ions in the same crystallographic sites.

Original languageEnglish
Pages (from-to)42-51
Number of pages10
JournalJournal of Alloys and Compounds
Volume498
Issue number1
DOIs
Publication statusPublished - 21 May 2010
Externally publishedYes

Fingerprint

Crystal chemistry
Rietveld refinement
Raman spectroscopy
Solid solutions
Rietveld method
Vibrational spectroscopy
Vanadates
Vibrational spectra
Full width at half maximum
X ray powder diffraction
Stretching
Cations
Positive ions
Ions
Crystalline materials
X ray diffraction
Crystals
Chemical analysis
Temperature

Keywords

  • BaSr(VO)
  • Orthovanadates
  • Raman spectroscopy
  • Rietveld refinements
  • X-ray diffraction

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys

Cite this

Crystal chemistry, Rietveld refinements and Raman spectroscopy studies of the new solid solution series : Ba3-xSrx(VO4)2 (0 ≤ x ≤ 3). / Azdouz, M.; Manoun, Bouchaib; Essehli, Rachid; Azrour, M.; Bih, L.; Benmokhtar, S.; Hou, A. Aït; Lazor, P.

In: Journal of Alloys and Compounds, Vol. 498, No. 1, 21.05.2010, p. 42-51.

Research output: Contribution to journalArticle

Azdouz, M. ; Manoun, Bouchaib ; Essehli, Rachid ; Azrour, M. ; Bih, L. ; Benmokhtar, S. ; Hou, A. Aït ; Lazor, P. / Crystal chemistry, Rietveld refinements and Raman spectroscopy studies of the new solid solution series : Ba3-xSrx(VO4)2 (0 ≤ x ≤ 3). In: Journal of Alloys and Compounds. 2010 ; Vol. 498, No. 1. pp. 42-51.
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