Modulated structure of La1/3-xLi3xNbO3 0 ≤ x ≤ 0.06 perovskite-related materials

被引：40

作者：

García-Martín, S ^{[1
]}

Alario-Franco, MA ^{[1
]}

机构：

[1] Univ Complutense Madrid, Fac CC Quim, Dept Quim Inorgan, E-28040 Madrid, Spain

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1999年 / 148卷 / 01期

关键词：

perovskite; lithium conductors; niobates; modulated structure; microdomains;

D O I：

10.1006/jssc.1999.8377

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The microstructure of samples of different composition belonging to the cation-deficient La1/3-xLi3xNbO3, 0 less than or equal to x less than or equal to 0.06, solid solution has been studied by selected area electron diffraction and high resolution transmission electron microscopy. The materials show a perovskite-related structure with basic lattice parameters a similar to root 2a(p), b similar to root 2a(p), c similar to 2a(p), Besides, short-range cation ordering gives place to a larger unit cell of dimensions a similar to 3.5 root 2a(p), b similar to root 2a(p), c similar to 4a(p). The lithium-containing compunds also present a complex microdomain structure of the octahedra tilting framework. (C) 1999 Academic Press.

引用

页码：93 / 99

页数：7

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