Low temperature neutron diffraction studies on Bi4Ti3O12

被引：12

作者：

Chakraborty, Keka R.

Achary, S. N.

Patwe, S. J.

Krishna, P. S. R.

Shinde, A. B.

Tyagi, A. K. ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Div Appl Chem, Bombay 400085, Maharashtra, India

[2] Bhabha Atom Res Ctr, Solid State Phys Div, Bombay 400085, Maharashtra, India

来源：

CERAMICS INTERNATIONAL | 2007年 / 33卷 / 04期

关键词：

bismuth titanate; neutron diffraction; crystal structure;

D O I：

10.1016/j.ceramint.2005.11.010

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The detailed crystal structure of Bi4Ti3O12 obtained by the Rietveld refinement of the powder neutron diffraction data in the temperature range of 300-15 K is being reported. At ambient temperature Bi4Ti3O12 has an orthorhombic structure (Space Group: B2cb) with unit cell parameters: a = 5.4432(5) angstrom, b = 5.4099(5) angstrom, c = 32.821(2) angstrom, and V = 966.5(1) angstrom(3). The low temperature neutron diffraction studies revealed the retention of the orthorhombic structure without any significant change in the atoms arrangement. A marginal decrease in the unit cell parameters is observed with the lowering of the temperature. (c) 2006 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：601 / 604

页数：4

共 16 条

[1] PHASE-TRANSITIONS AND IONIC-CONDUCTIVITY IN BI4V2O11 AN OXIDE WITH A LAYERED STRUCTURE [J].