论文标题
步骤结构对沉积在Ni上的AG的优选方向关系的影响（111）
Influence of step structure on preferred orientation relationships of Ag deposited on Ni(111)
论文作者
论文摘要
先前的研究表明，异性持久性中发展的方向关系受到沉积步骤与基材先前存在的步骤的对齐的强烈影响。在本文中，我们将实验与计算机模拟的组合结合在一起，以确定底物步骤结构对存款中最终发展关系的重要影响。我们已经使用了沉积在Ni上的Ag，因为它已被广泛用作杂型epitaxy研究的模型系统。该系统显示16％的较大晶格不匹配。结果表明，在Ni的任何表面上（111），它们具有两种可能的<110>步骤（带有{100}壁架的A步长和带有{111}壁架的B-步长），Ag沉积物在AG的情况下只有A step稳定，因此AG沉积物会产生单个方向关系。
Previous studies have shown that the orientation relationships which develop in hetero-epitaxy are strongly influenced by the alignment of steps in the deposit with the pre-existing steps of the substrate. In this paper we use a combination of experiments with computer simulations to identify the important influence of substrate step structure on the eventual orientation relationships that develop in the deposit. We have made use of Ag deposited on Ni as it has been used extensively as a model system for the study of hetero-epitaxy. This system displays a large lattice mismatch of 16%. It is shown that on any surface vicinal to Ni(111), which has two possible kinds of <110> steps (A-steps with {100} ledges and B-steps with {111} ledges), a Ag deposit adopts a single orientation relationship because only A-steps remain stable in the presence of Ag.
