Correlation between impurity distribution and location of ferroelectric domain walls in Nd:Mg:LiNbO3 single crystal

被引：35

作者：

Naumova, II ^{[1
]}

Evlanova, NF

Blokhin, SA

Lavrishchev, SV

机构：

[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119899, Russia

[2] Russian Acad Sci, Inst Gen Phys, Moscow 117924, Russia

来源：

JOURNAL OF CRYSTAL GROWTH | 1998年 / 187卷 / 01期

关键词：

LiNbO3; periodically poled structure; impurity modulation; face;

D O I：

10.1016/S0022-0248(97)00837-3

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Using selective chemical etching, scanning electron microscope (SEM) and wave dispersive X-ray (WDX) microanalysis we showed that the ferroelectric domain walls coincide with the maxima and minima Nd-impurity modulation in a periodically poled Nd:Mg:LiNbO3 crystal grown bg the Czochralski method along the normal Lo the (0 1 (1) over bar 2)face, Asymmetric form of the Nd-modulation produces nonequal positive and negative domains for one period. Variations of instantaneous rate of growth were estimated for facet and nonfacet crystal region in the framework of Burton-Prim-Slichter theory. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：102 / 106

页数：5

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