A STUDY OF DISLOCATIONS GENERATED BY INCLUSIONS IN GADOLINIUM GALLIUM GARNET CRYSTALS BY BIREFRINGENCE TOPOGRAPHY

被引：3

作者：

GE, CZ

HSU, CC

MING, NB

机构：

[1] UNIV SCI & TECHNOL,STRUCT RES LAB,HEFEI 230026,PEOPLES R CHINA

[2] CHINESE UNIV HONG KONG,DEPT ELECTR ENGN,SHA TIN,HONG KONG

[3] NANJING UNIV,NATL LAB SOLID STATE MICROSTRUCT,NANJING 210008,PEOPLES R CHINA

来源：

JOURNAL OF CRYSTAL GROWTH | 1994年 / 142卷 / 1-2期

关键词：

D O I：

10.1016/0022-0248(94)90280-1

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

By means of birefringence topography, the stress fields around and the dislocations generated from iridium inclusions of various shapes in gadolinium gallium garnet (GGG) have been characterized. The Burgers vectors of dislocations have been identified as 1/2a[111], a[100] and a[110]. Some of the dislocations with a[110] Burgers vector are decomposed into two perfect dislocations with 1/2a[111] Burgers vector. It has been demonstrated that the inclusions acted as effective sources to generate dislocations in GGG crystal during growth and cooling processes.

引用

页码：133 / 139

页数：7

共 26 条

[1] PHOTOGRAPHS OF THE STRESS FIELD AROUND EDGE DISLOCATIONS [J].