The structure of CeAlO3 by Rietveld refinement of X-ray powder diffraction data

被引：34

作者：

Fu, WT ^{[1
]}

IJdo, DJW ^{[1
]}

机构：

[1] Leiden Univ, Gorlaeus Labs, Leiden Inst Chem, NL-2300 RA Leiden, Netherlands

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2004年 / 177卷 / 09期

关键词：

perovskites; X-ray powder diffraction; crystal structure;

D O I：

10.1016/j.jssc.2004.04.056

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The room temperature structure of perovskite CeAlO3 has been reinvestigated by X-ray powder diffraction. The Rietveld refinement has confirmed the tetragonal symmetry; but revealed a super cell, a = 5.32489(6) Angstrom and c = 7.58976(10) Angstrom, with the space group I4/mcm. In CeAlO3, the distortion from the ideal cubic perovskite is caused by the cooperative tilting of the AlO6 octahedra around the primitive cubic [001](p)-axis. (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：2973 / 2976

页数：4

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