Surface, Defects, Atom Transport and Epitaxial Growth

该项目包括表征晶体上的结构缺陷，以及研究这些缺陷在表面原子扩散中的作用。将研究原子在表面上运动以产生形态变化和表面相变的机制。结构和动力学研究的主要实验方法将是扫描隧道显微镜、低能电子衍射和表面X射线衍射。实验将在半导体(硅、锗和砷化镓)和金属单晶上进行。

This project involves characterization of structural defects on crystals, as well as investigations of the role of these defects in surface atomic diffusion. The mechanisms by which atoms move on surfaces to produce morphology changes and surface phase transitions will be studied. The major experimental methods for the structural and kinetic studies will be scanning tunneling microscopy, low energy electron diffraction, and surface x-ray diffraction. Experiments will be performed on semiconductors (silicon, germanium and gallium arsenide) and on metal single crystals.