Ordered double perovskites - a group-theoretical analysis

被引：460

作者：

Howard, CJ

Kennedy, BJ

Woodward, PM

机构：

[1] Australian Nucl Sci & Technol Org, Menai, NSW 2234, Australia

[2] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia

[3] Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia

[4] Ohio State Univ, Dept Chem, Columbus, OH 43210 USA

来源：

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE | 2003年 / 59卷

关键词：

D O I：

10.1107/S0108768103010073

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Group-theoretical methods are used to enumerate the structures of ordered double perovskites, A(2)BB'X-6, in which the ordering of cations B and B' into alternate octahedra is considered in combination with the ubiquitous BX6 (or B'X-6) octahedral tilting. The cation ordering on the B-cation site is described by the irreducible representation R-1(+) of the Pm (3) over barm space group of the cubic aristotype, while the octahedral tilting is mediated by irreducible representations M-3(+) and R-4(+). There are 12 different structures identified, and the corresponding group-subgroup relationships are displayed. Known structures are briefly reviewed.

引用

页码：463 / 471

页数：9

共 51 条

[21] SYNTHESES, STRUCTURES, AND MAGNETISM OF BARIUM/RARE-EARTH/BISMUTH DOUBLE PEROVSKITES - CRYSTAL-STRUCTURES OF BA(2)MBIO(6) (M=CE, PR, ND, TB, YB) BY POWDER NEUTRON-DIFFRACTION [J].