FAST-ION CONDUCTION AND THE STRUCTURE OF BETA-MG3BI2

被引：24

作者：

BARNES, AC ^{[1
]}

GUO, C ^{[1
]}

HOWELLS, WS ^{[1
]}

机构：

[1] RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1994年 / 6卷 / 32期

基金：

新加坡国家研究基金会;

关键词：

D O I：

10.1088/0953-8984/6/32/002

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The structure of beta-Mg3Bi2 has been determined by neutron powder diffraction. The results show this is a superionic phase, with a fixed body-centred cubic bismuth sub-lattice and mobile Mg2+ ions. From analysis of the radial distribution function obtained from the diffraction pattern, it is concluded that the magnesium ions occupy the tetrahedral and triangular symmetry sites of the bismuth lattice in a similar way to the silver ions in the anion lattices of alpha-AgI and alpha-Ag2Se. This material is an example of a new type of superionic conductor in which the metallic mobile ion is small and doubly charged.

引用

页码：L467 / L471

页数：5

共 9 条

[1]

Enderby J. E., 1970, Journal of Non-Crystalline Solids, V4, P161, DOI 10.1016/0022-3093(70)90033-5

[2] LIQUID SEMICONDUCTORS [J].