Acquisition and Development of a High-Resolution Photoelectron Analyzer for Studies of Surfaces, Films, and Multilayers of Metals, Semiconductors, & Magnetic Materi

9531582 Chiang凭借该奖项，伊利诺伊大学厄巴纳-香槟分校的物理系将获得一台高分辨率光电子分析仪，该分析仪将致力于支持材料和物理科学的研究。 该设备将用于两个基于高分辨率光电子能谱的研究项目。 在一个，表面的原子结构将使用光电子衍射，扩展的光电子精细结构光谱学和光电子全息技术进行研究。 这些技术提供了关于表面原子的对称性和几何排列的信息，并且是研究表面化学反应和膜生长的原子学的有力工具。 在另一个项目中，将研究量子层结构，包括单量子和多量子威尔斯和超晶格。 目标是了解与量子限制、耦合、界面散射和晶体势调制相关的电子效应。 自旋极化和磁效应在这些量子结构将进行研究。 该分析仪将与同步辐射中心（威斯康星州的斯托顿）和高级光子源（阿贡国家实验室）正在建设的新波荡器源一起使用。

9531582 Chiang With this award, the Department of Physics at the University of Illinois at Urbana-Champaign will acquire a high resolution photoelectron analyzer, which will be dedicated to support research in materials and physical sciences. The equipment will be used for two research projects based on high resolution photoelectron spectroscopy. In one, the atomic structure of surfaces will be studied using the techniques of photoelectron diffraction, extended photoemission fine structure spectroscopy, and photoelectron holography. These techniques provide information about the symmetry and geometrical arrangement of surface atoms, and are powerful tools for investigating the atomistics of surface chemical reactions and film growth. In the other project, quantum layer structures, including single and multiple quantum wells and superlattices, will be studies. The goal is to understand the electronic effects associated with quantum confinement, coupling, interface scattering and crystal potential modulation. Spin polarization and magnetic effects in these quantum structures will be investigated. This analyzer will be used in conjunction with the new undulator sources that are under construction at the Synchrotron Radiation Center (Stoughton, Wisconsin) and the Advanced Photon Source (Argonne National Laboratory).