扫描隧道显微镜的开发与计算机化

Development and Computer-Automation of Scanning Tunneling Microscope

扫描隧道显微镜(STM)自1982年由G.Binnig和H.Rohrer发明以来发展异常迅速,与常规显微镜相比,其空间分辨率提高了一个至几个数量级,达到原子级水平,现在已被公认为是用于研究物质分子(原子)水平上的结构特性及其表征的一种无与伦比的划时代的新型仪器,用于物理学、化学、生物学、电子学、材料科学和分子电子学等众多领域,利用STM不仅可以表征物质的微观形貌,还可以“挪动”或“擦除”单一原子,实现原子的“读”、

In this paper, it is presented that the working principle and operational process, hardware composition and software functions of a scanning tunneling microscope (STM) system, which was set up through the development and computer-automation of an imported Nanosscoipe - I device. The experimental results obtained on the system are given and briefly discussed, which include atomic image of highly oriented pyrolythic graphite (HOPG), the image of molecular alignment of polyimide LB film and the fine structural image of an ultrathin metalic film.