THE ORTHORHOMBIC FLUORITE RELATED-COMPOUNDS LN3IRO7

被引：58
作者：
VENTE, JF
IJDO, DJW
机构：
[1] Gorlaeus Laboratories, 2300 RA Leiden
来源：
MATERIALS RESEARCH BULLETIN | 1991年 / 26卷 / 12期
关键词：
LANTHANIDES; IRIDATES; FLUORITE-LIKE COMPOUNDS;
D O I：
10.1016/0025-5408(91)90139-D
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Fluorite-related Ir(V) compounds with the composition Ln3IrO7 have been prepared. The structure of these phases is orthorhombic with space group Cmcm. It is a superstructure of the cubic fluorite structure with unit cell parameters a(orth) almost-equal-to 2a(c), b(orth) almost-equal-to c(orth) almost-equal-to a(c) square-root 2, as in La3NbO7. The structure determination has been performed using Rietveld refinement on X-ray powder diffraction data.
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页码：1255 / 1262
页数：8
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