Observation of inhomogeneity in congruent LiTaO3 crystal

被引：6

作者：

Hu, XB ^{[1
]}

Jiang, HD

Liu, H

Jiang, SS

Li, Q

Wang, JY

Zhang, CQ

Teng, B

Tian, YL

Huang, WX

机构：

[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

[2] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

[3] Beijing Synchrotron Radiat Lab, Inst High Energy, Beijing 100039, Peoples R China

来源：

JOURNAL OF CRYSTAL GROWTH | 2001年 / 225卷 / 01期

基金：

中国国家自然科学基金;

关键词：

X-ray topography; lithium compounds;

D O I：

10.1016/S0022-0248(01)01035-1

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The inhomogeneity in a congruent LiTaO3 crystal has been observed by transmission synchrotron topography. Many extraordinary regions exist in congruent LiTaO3 crystal and they often show diffraction intensity different from that of ordinary regions in synchrotron topographs. Differential thermal analysis indicates that the Curie temperature of the extraordinary region is lower than that of ordinary region, and the extraordinary region is really a high defect density region. The diffraction contrast of the extraordinary region in synchrotron topographs is explained qualitatively by a calculation at the selected wavelength. (C) 2001 Published by Elsevier Science B.V.

引用

页码：6 / 8

页数：3

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