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

页码：893 / 895

页数：3

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