Crystal structure and disorder of the fast oxide-ion conductor cubic Bi2O3

被引：144

作者：

Yashima, M ^{[1
]}

Ishimura, D ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Mat Sci & Engn, Interdisciplinary Grad Sch Sci & Engn, Midori Ku, Yokohama, Kanagawa 2268502, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 378卷 / 3-4期

关键词：

D O I：

10.1016/j.cplett.2003.07.014

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Accurate nuclear density distribution of cubic bismuth oxide (delta-Bi2O3) has been obtained by the maximum entropy method (MEM)-based pattern fitting combined with the Rietveld method using neutron-powder-diffraction data. The result shows for the first time that the oxide ions have a complicated disorder spreading over a wide area and shift to the <111> directions from the ideal fluorite site. These features are responsible for the high oxide-ion conductivity. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：395 / 399

页数：5

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