低能电子衍射的新进展  

NEW DEVELOPMENTS OF LEED

作　　者：刘惠周 徐耕[1] 

机构地区：[1]中山大学物理系

出　　处：《真空科学与技术学报》1991年第3期141-155,179,共16页Chinese Journal of Vacuum Science and Technology

摘　　要：低能电子衍射(LEED)在近年得到很大的发展,并已成为表面科学中越来越重要和成熟的一种工具。本文综述了LEED在近年取得的主要进展,分为五节:1.近十年来LEED的概况;2.准动力学方法和束集忽略方法;3.张量LEED及自动搜索和直接方法;4.弥散LEED和全息LEED;5.SPALEED的定量分析。在第五节中,我们基于全动力学理论讨论了SPALEED基本公式。In recent years, there are many developments in low energy electron diffraction(LEED),and LEED has become a more and more impertant and sophisticated tool in surface science.This paper reviewed some main developments of LEED in recent years. It consist of fiveparts: 1. Summary of LEED in recent ten years. 2. The quasi-dynamical method and thebeam-set neglect method. 3. The tensor LEED and the directed search method and the directmethod. 4. The diffuse LEED and the holographic LEED. 5. The quantitative analysis ofSPALEED. In the fifth part, we discussed the fundamantal formula for SPALEED based onfull dynamical theory.

关 键 词：低能电子衍射 原子层 吸附分子 动力学方法 多次散射 射束 超结构 理论讨论 金属原子 波矢 

分 类 号：TB7-55[一般工业技术—真空技术]