Crystal structure of a layered perovskite, barium europium manganese oxide [BaEu2Mn2O7]

被引：8
|
作者：
Ueno, S
Meng, J
Kamegashira, N
SaitoNakano, H
Enami, K
机构：
[1] RYUKOKU UNIV, ELECTRON MICROSCOPE LAB, OTSU, SHIGA 52021, JAPAN
[2] RYUKOKU UNIV, DEPT MECH & SYST ENGN, OTSU, SHIGA 52021, JAPAN
来源：
MATERIALS RESEARCH BULLETIN | 1996年 / 31卷 / 05期
关键词：
oxides; X-ray diffraction; crystal structure;
D O I：
10.1016/S0025-5408(96)00032-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The crystal structure of BaEu2Mn2O7 with a layered perovskite was determined for the powder X-ray diffraction data by Rietveld analysis. The unit cell is orthorhombic with a a(0) = 0.5503(1), b(0) = 0.5481(3), c(0) = 2.030(9) nm amd Z = 4 with the space group Fmmm. The oxygen octahedron in this Structure was elongated along c axis and distorted along [110](t) direction of fundamental body centered tetragonal cell due to Jahn-Teller effect.
引用
收藏
页码：497 / 502
页数：6
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