Structures in irrational singular interfaces
Structures in irrational singular interfaces
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DOI：
10.1007/s11661-006-1012-z
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
Wen-Zheng Zhang;D. Qiu;Xiaowei Yang;F. Ye
中科院分区：
文献类型：
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作者：
Wen-Zheng Zhang;D. Qiu;Xiaowei Yang;F. Ye
我们认为周期性良好匹配带（以o线为中心）是非理性奇异界面中处于主优选状态的结构的特征。对于非合理奇异接口，不同模型描述的各种结构都具有这一特征，可以用来整合不同的描述。本文定量分析了良好匹配区的分布与平面匹配几何的关系。这一分析强调，一组主平面的匹配并不代表良好的格匹配。良好的点阵匹配只可能在0-dintersection的位置，即三组非线性相关的moir<s:1>平面相交的位置。界面中一组或多组主平面的匹配通常意味着界面中可能存在周期性gmz。分析还解释了为什么以及在什么条件下位错结构可以用莫尔维尔平面的痕迹来描述。基于o晶格理论，可以确定精确的0点相交的分布。当周期o元素不存在时，近似的0-离散可用于确定可能的界面结构。
We consider periodic good matching bands (which are centered at the O-lines) as the characteristic feature of the structures in irrational singular interfaces in the primary preferred state. This feature is shared by various structures described by different models for irrational singular interfaces, and it can be used to consolidate different descriptions. We have made a quantitative analysis on the distribution of good matching zones (GMZs) in a relationship with plane matching geometry. This analysis emphasizes that matching of one set of principal planes does not represent good lattice matching. Good lattice matching is possible only at the locations of 0-dintersections, where three sets of nonlinearly related Moiré planes intersect. Matching of one or more sets of principal planes in an interface usually implies the possible presence of periodic GMZs in the interface. The analysis also explains why and in what condition a dislocation configuration can be described by the traces of Moiré planes. The distribution of exact 0-dintersections can be determined based on the O-lattice theory. The approximate 0-dintersections can be used for determining a possible interfacial structure when periodic O-elements do not exist.