Ion Scattering Studies of Reconstruction and Growth

这项研究的总体目标是确定几何 表面结构，特别是重建表面。 这 工作提供了一个更深入和更广泛的了解的因素， 影响界面处的原子位置，并使用这些知识 人工制造表面， 有用的属性。 一些将要讨论的问题 包括：1）外部扰动的影响，如步骤 和不同电负性的吸附原子， 现象; 2）造成影响的微观因素是什么 双层生长？我们可以从这些研究中获得什么新的见解 表面的振动特性 主要实验 所采用技术是中等能量离子散射。

The general goals of this research are to determine the geometric structure of surfaces, in particular reconstructed surfaces. This work provides a deeper and wider understanding of the factors that affect atomic positions at interfaces and to use this knowledge to artificially produce surfaces with interesting and potentially useful properties. Some of the issues that will be addressed include: 1) the influence of external perturbations, like steps and adatoms of different electronegativity, on reconstruction phenomena; 2) what are the microscopic factors that cause influence bilayer growth?; what new insights can be obtained about the vibrational properties at a surface? The principal experimental technique to be employed is medium energy ion scattering.