Formation, condition of existence and peculiarities of Sr2LaTa3O11 slab perovskite-like structure

The succession of phase transformations with heat treatment of co-precipitated hydroxy-carbonates with the ratio Sr/La/Ta=2:1:3 has been established. The possibility has been shown to obtain Sr2LaTa3O11. It is the first representative of a series of slab perovskite-like compounds of the AnBnO3n+2-ty...

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Bibliographic Details
Published in:Journal of alloys and compounds 2002-05, Vol.337 (1-2), p.89-93
Main Authors: Titov, Yu.A, Sych, A.M, Markiv, V.Ya, Belyavina, N.M, Kapshuk, A.A, Yaschuk, V.P, Slobodyanik, M.S
Format: Article
Language:English
Subjects:
Chemical synthesis
Condensed matter: structure, mechanical and thermal properties
Crystal structure
Exact sciences and technology
Inorganic compounds
Oxide materials
Physics
Single-crystal and powder diffraction
Structure of solids and liquids
crystallography
Structure of specific crystalline solids
X-Ray diffraction
X-ray diffraction and scattering
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Summary:The succession of phase transformations with heat treatment of co-precipitated hydroxy-carbonates with the ratio Sr/La/Ta=2:1:3 has been established. The possibility has been shown to obtain Sr2LaTa3O11. It is the first representative of a series of slab perovskite-like compounds of the AnBnO3n+2-type with n=3. Sr2LaTa3O11 belongs to a new (own) structure type. The formation mechanism and the existence conditions have been investigated. Also the peculiarities of the Sr2LaTa3O11 slab perovskite-like structure have been determined.
ISSN:0925-8388
1873-4669
DOI:10.1016/S0925-8388(01)01918-1