IONIC-CONDUCTION IN YTTRIUM-ALUMINUM-GARNET

被引：11
|
作者：
ROTMAN, SR [1 ]
TULLER, HL [1 ]
机构：
[1] MIT,DEPT MAT SCI & ENGN,CRYSTAL PHYS & OPT ELECTR LAB,CAMBRIDGE,MA 02139
来源：
SOLID STATE IONICS | 1990年 / 40-1卷
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0167-2738(90)90146-I
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：
The ionic conductivity of YAG single crystals doped with a variety of impurities including Ce, Ni, Ni+Zr, Fe and Ca was studied and generally found to be PO2-independent, fixed by acceptor impurities. In the case of Ni dopants, a PO2-dependent ionic conductivity was also observed and associated with the valence change of Ni3+ to Ni2+. The activation energy for oxygen ion conduction ranged from 2.2 to 4.0 eV. Results are compared with diffusion data. © 1990.
引用
收藏
页码：893 / 895
页数：3
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