Estimation of liquid phase diffusion coefficients of gallium and antimony in germanium from segregation data in crystal growth experiments

J.P. Garandet

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Estimation of liquid phase diffusion coefficients of gallium and antimony in germanium from segregation data in crystal growth experiments

机译：从晶体生长实验中的偏析数据估算锗和锑中镓和锑的液相扩散系数

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摘要

The objective of this paper is to propose new determinations of the diffusion coefficients of gallium and antimony in liquid germanium. To do so, an analysis of effective segregation coefficients obtained in Czochralski growth experiments is carried out in the frame of a self-consistent solidification model. As such, the deduced diffusivity values should be taken as more reliable than previously published data based on the analysis of solute segregation profiles, but the accuracy of the technique is limited by the scatter of the composition measurements. Comparison with existing data supports the necessity of setting up a dedicated experimental program for the measurement of liquid phase diffusion coefficients in germanium.

机译：本文的目的是提出测定液态锗中镓和锑的扩散系数的新方法。为此，在自洽凝固模型的框架内对在直拉生长实验中获得的有效偏析系数进行了分析。因此，基于溶质偏析曲线的分析，推论出的扩散率值应被认为比以前公布的数据更可靠，但该技术的准确性受到组成测量值的分散性的限制。与现有数据进行比较，证明有必要建立专门的实验程序来测量锗中的液相扩散系数。

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来源
《Journal of Crystal Growth》 |2008年第14期|p.3268-3273|共6页
作者
J.P. Garandet;
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作者单位

Commissariat a l'Energie Atomique, DRT/LITEN/DTS/LCS, INES, 73377 Le Bourget du lac Cedex, France;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类晶体学;
关键词
A1. diffusion; A1. fluid flows; A1. segregation; A2. czochralski method; B1 germanium-silicon alloys;

机译：A1。扩散;A1。流体流动;A1。隔离;A2。 czochralski方法;B1锗硅合金;

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Estimation of liquid phase diffusion coefficients of gallium and antimony in germanium from segregation data in crystal growth experiments

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