Effect of gravitation vector orientation relative to the solidification front on the micro- and macrohomogeneity of semiconductor crystals grown under terrestrial and space conditions

被引:2
作者
Strelov, V. I. [1 ]
Zakharov, B. G. [1 ]
Artemiev, V. K. [2 ]
机构
[1] Russian Acad Sci, AV Shubnikov Crystallog Inst, Res Ctr Space Mat Sci, Kaluga 248640, Russia
[2] State Sci Ctr Russian Federat, Leypunsky Inst Phys & Power Engn, Obninsk 249033, Kaluzhskaya Obl, Russia
来源
JOURNAL OF SURFACE INVESTIGATION | 2009年 / 3卷 / 01期
关键词
Surface Investigation; Neutron Technique; Gravity Force; Solidification Front; Marangoni Convection;
D O I
10.1134/S1027451009010170
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The influence of gravitation vector orientation relative to the solidification front on the dopant distribution micro- and macrohomogeneity in vertical oriented crystallization of highly Ga-doped Ge crystals has been investigated using computer simulation. The deviation of the axis for crystal growth relative to the g (0) vector, when a free surface of the melt is present, has been found to provide the formation of striations with a reduced dopant concentration. The influence of the solidification rate, convective and diffusion mass flows on the dopant distribution macrohomogeneity has been investigated.
引用
收藏
页码:98 / 104
页数:7
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