Dynamics and Energetics of Atomic Processes on Solid Surfaces

这是一个实验性的研究项目，旨在回答 以下科学问题：电子电荷密度 在表面上是由吸附的杂质原子调制，如何 电荷密度的调制影响平衡分布 表面和界面附近的化学物种， 特定的结合能，以及这些调节如何影响 表面的结构。 所使用的实验技术 场离子显微镜和飞行时间原子探针。 主要 研究的重点是 表面原子过程以及它们如何与 原子结构以及 近表面和界面层的化学物种 金属、合金、半导体及其组合。

This is an experimental research program designed to answer the following scientific issues: how the electronic charge density at the surface is modulated by adsorbed impurity atoms, how modulation of charge density affects the equilibrium distribution of chemical species near surfaces and interfaces, what are site specific binding energies, and how these modulations affect structure at surfaces. The experimental techniques being used field ion microscopy and time-of-flight atom probe. The main emphasis of the research is the dynamics and energetics of surface atomic processes and how they are correlated to the atomic structures as well as the equilibrium distribution of chemical species in the near surface and interface layers of metals, alloys, semiconductors, and their combinations.