Effect of Li diffusion on the composition of LiNbO3 at high temperature

被引：38

作者：

Chen, YL ^{[1
]}

Wen, JP

Kong, YF

Chen, SL

Zhang, WL

Xu, JJ

Zhang, GY

机构：

[1] Nankai Univ, Inst Phys Sci, Optoelect Mat Ctr, Tianjin 300071, Peoples R China

[2] Tianjin Univ, Coll Chem Engn, Tianjin 300072, Peoples R China

来源：

JOURNAL OF CRYSTAL GROWTH | 2002年 / 242卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

characterization; lattice parameters; growth from vapor; vapor transport equilibration; Li diffusion; lithium niobate;

D O I：

10.1016/S0022-0248(02)01454-9

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

LiNbO3 crystals with a variety of compositions were prepared by the vapor transport equilibration (VTE) technique. Crystals were characterized through the measurements of fundamental absorption edge, lattice parameters and the electric field required for ferroelectric domain switching. The techniques employed for characterization served as tools for the determination of the composition and homogeneity of the crystals. We discussed the Li diffusion mechanisms in LiNbO3 crystals at high temperature and found that the Li vacancy model is consistent with the experimental results for the VTE-grown LiNbO3 crystal. (C) 2002 Published by Elsevier Science B.V.

引用

页码：400 / 404

页数：5

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