Acta Cryst. (2009). B65, 558-566 [ doi:10.1107/S010876810902833X ]
Abstract: Successful Rietveld refinements of seven compounds with the formulae La2Ti(1-x)GaxO(5-x/2), where x = 0.00, 0.20, 0.50, 0.70, 0.90, 0.95 and 1.00, were performed in order to describe the solid solubility between orthorhombic (Pnam) La2TiO5 and monoclinic (P21/c) La4Ga2O9. The relationship between the end-member structures, which are already known, is discussed; the space-group change is a consequence of ordering the oxygen vacancies that become more numerous as Ga is substituted for Ti. The structures of the solid solutions are also described. The lengths of cell edges obey Vegard's rule.
Keywords: solid solubility; ternary system; X-ray powder diffraction; ordering of oxygen vacancies.
 |   Rietveld powder data file (CIF format) (108.0 kbytes) |
| Rietveld powder data file (CIF format) (108.0 kbytes) |
| Rietveld powder data file (CIF format) (108.0 kbytes) |
| Rietveld powder data file (CIF format) (108.0 kbytes) |
| Rietveld powder data file (CIF format) (108.0 kbytes) |
| Rietveld powder data file (CIF format) (108.0 kbytes) |
| Rietveld powder data file (CIF format) (108.0 kbytes) |
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