CRYSTAL-GROWTH OF DISLOCATION-FREE LINBO3 SINGLE-CRYSTALS BY MICRO-PULLING-DOWN METHOD

被引:153
作者
YOON, DH [1 ]
YONENAGA, I [1 ]
FUKUDA, T [1 ]
OHNISHI, N [1 ]
机构
[1] ELECTROTECH LAB,TSUKUBA,IBARAKI 305,JAPAN
关键词
D O I
10.1016/0022-0248(94)90342-5
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
LiNbO3 micro single crystals were successfully grown by a crystal growth method using a micro nozzle in the bottom of a crucible. By this method, crack-free LiNbO3 single crystals have been grown along the x, y and z axes having diameters of 60-800 mum, independent of the growth axis, growth rate and melt composition. Very high growth rates of up to 90 mm/h have been used without lessening of crystal quality. The grown crystals were revealed to be free of dislocations and subgrain boundaries up to 500 mum in diameter, as determined by X-ray topography and etching technique.
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页码:339 / 343
页数:5
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