Structural Studies of Five Layer Aurivillius Oxides: A(2)Bi(4)Ti(5)O(18) (A = Ca, Sr, Ba and Pb)

被引：3

作者：

Ismunandar ^{[1
,2
]}

Kamiyama, T. ^{[1
]}

Hoshikawa, A. ^{[1
]}

Zhou, Q. ^{[3
]}

Kennedy, B. J. ^{[3
]}

机构：

[1] High Energy Accelerator Res Org, Inst Mat Struct Sci, Tsukuba, Ibaraki 3050801, Japan

[2] Inst Teknol Bandung, Dept Kimia, Bandung 40132, Indonesia

[3] Univ Sydney, Sch Chem, Ctr Heavy Met Res, Sydney, NSW 2006, Australia

来源：

JOURNAL OF NEUTRON RESEARCH | 2005年 / 13卷 / 1-3期

基金：

澳大利亚研究理事会;

关键词：

Aurivillius phase; Neutron powder diffraction; CaBi4Ti5O18; SrBi4Ti5O18; BaBi4Ti5O18; PbBi4Ti5O18;

D O I：

10.1080/10238160412331299933

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The room temperature structures of the five layer Aurivillius phases A(2)Bi(4)Ti(5)O(18) (A = Ca, Sr, Ba and Pb) have been refined from powder neutron diffraction data using the Rietveld method. The structures consist of [Bi2O2](2+) layers interleaved with perovskite-like [A(2)Bi(2)Ti(5)O(16)](2-) blocks. The oxides were found to be orthorhombic (space group B2cb) as a consequence of tilting of the TiO6 octahedra coupled with cation displacement. The tilting is a consequence of the mismatch between the Bi2O2 and perovskite-like layers.

引用

页码：183 / 187

页数：5

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