INTERSTEP INTERACTION IN SOLUTION GROWTH - (101) ADP FACE

被引：104

作者：

VEKILOV, PG ^{[1
]}

KUZNETSOV, YG ^{[1
]}

CHERNOV, AA ^{[1
]}

机构：

[1] ZHK SVOBODA,BU-1229 SOFIA,BULGARIA

来源：

JOURNAL OF CRYSTAL GROWTH | 1992年 / 121卷 / 04期

关键词：

D O I：

10.1016/0022-0248(92)90571-Y

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Michelson interferometry combined with X-ray topography was applied to study growth morphology and kinetics of the (101) ADP face in a flowing solution. Step velocity was measured as a function of different parameters. The data reveal a step-step interaction at average distances of the order of approximately 1-mu-m. This interaction is interpreted in the terms of surface diffusion. Parameters of step motion and adsorption on the surface are deter-mined. Azimuthal growth anisotropy is related to crystal structure. A formula giving the azimuthally anisotropic hillock slope versus supersaturation on a complex dislocation source plus experimental dependencies of the hillock slope on the supersaturation for various dislocation sources enabled us to determine the free surface energy of the step riser alpha = 29 erg/cm2 and the Burgers vector of the growth sources. "Quantization" of the measured hillock slopes in the whole supersaturation region supposes identical structure of the dislocation sources of equal strength.

引用

页码：643 / 655

页数：13

共 37 条

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