Displacements in the Cationic Motif of Nonstoichiometric Fluorite Phases Ba<sub>1−</sub><i><sub>x</sub></i><i>R<sub>x</sub></i>F<sub>2+</sub><i><sub>x</sub></i> as a Result of the Formation of {Ba<sub>8</sub>[<i>R</i><sub>6</sub>F<sub>68–69</sub>]} Clusters: III. Defect Cluster Structure of the Nonstoichiometric Phase Ba<sub>0.69</sub>La<sub>0.31</sub>F<sub>2.31</sub> and Its Dependenceon Heat Treatment

Displacements in the Cationic Motif of Nonstoichiometric Fluorite Phases Ba<sub>1−</sub><i><sub>x</sub></i><i>R<sub>x</sub></i>F<sub>2+</sub><i><sub>x</sub></i> as a Result of the Formation of {Ba<sub>8</sub>[<i>R</i><sub>6</sub>F<sub>68–69</sub>]} Clusters: III. Defect Cluster Structure of the Nonstoichiometric Phase Ba<sub>0.69</sub>La<sub>0.31</sub>F<sub>2.31</sub> and Its Dependenceon Heat Treatment

The defect structure of Ba<sub>0.69</sub>La<sub>0.31</sub>F<sub>2.31</sub> single crystals in as-grown state and after annealing at 1173 K for 336 h was studied by X-ray diffraction analysis. Both crystals belong to the CaF<sub>2</sub> structure type (...

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Bibliographic Details
Main Authors: Elena A. Sulyanova, Denis N. Karimov, Boris P. Sobolev
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Crystals
Subjects:
nonstoichiometric fluorides
defect crystal structure
clusters
rare earths
fluorite
Online Access:https://www.mdpi.com/2073-4352/11/4/447

Internet

https://www.mdpi.com/2073-4352/11/4/447

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