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Apuleyo Hernández-Pérez, Lauro Bucio, Alejandro Ibarra-Palos, Maria Elena Villafuerte-Castrejón

Crystal chemistry study of the solid solutions in the system La₂BaZnO₅—Eu₂BaZnO₅

Keywords: Europium barium zinc oxide, Lanthanum barium zinc oxide, Solid solutions, Powder diffraction structure analysis, Rietveld refinement

In this work, a complete crystallochemical characterization of two solid solutions, which were founded in the binary end members system La₂BaZnO₅—Eu₂BaZnO₅, is reported. Both compounds belong to the family of mixed oxides with formula Ln₂BaMO₅ which presents interesting magnetic, electric and optical properties. Several works have been reported about this family of compounds with the same stoichiometry but with different structures depending on the M²⁺ coordination and rare earth content. Two solid solutions were obtained and characterized. Cell parameters, density measurements and solubility limits were determined for both solid solutions.
Structure refinements of Eu₂BaZnO₅, La₂BaZnO₅ and the two solid solution series were carried out by the Rietveld method. Both structures and their relationship were discussed.

Zeitschrift für Kristallographie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0044-2968
Volume: 221, 04/2006
Pages: 246 - 251

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