Cation ordering in (Sr1-xCax)TiO3

被引：0
|
作者：
Goo, E [1 ]
King, G [1 ]
机构：
[1] Univ So Calif, Dept Mat Sci & Engn, Los Angeles, CA 90089 USA
来源：
FERROELECTRICS | 1998年 / 215卷 / 1-4期
关键词：
ferroelectrics; perovskites; ordering; transmission electron microscopy;
D O I：
10.1080/00150199808229566
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ordering of the A-site cations was observed in (Sr1-xCax)TiO3 for 0.4 less than or equal to x less than or equal to 0.7 by electron diffraction, Strong 1/2{111} reflections are observed for the x = 0.4, 0.5 and 0.6 compositions indicating NaCl-type ordering of the A-sire cations. The presence of 1/2{110} and 1/2{100} reflections are also observed which is probably caused by oxygen octahedra tilting similar to what occurs in CaTiO3. However the 1/2{110} and 1/2{100} reflections for the x = 0.5 composition, have a higher intensity than other compositions, indicating that the octahedra tilting is enhanced by the cation ordering.
引用
收藏
页码：245 / 253
页数：9
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