摘要
本文简要综述利用扫描隧道显微镜(STM)进行单原子操纵的物理机制。主要介绍了场增强的扩散、在表面上拖动(puling)推动(pushing)原子、原子在针尖表面间接触和近接触转移、场致蒸发/脱附、隧道电子非弹性射激发和电子迁移的“电子风力”等过程。同时介绍了一些理论处理方法和对一些实验结果的解释。
AbstractWe give a brief review on the mechanisms of the manipulation of single atoms with the scanning tunneling microscope (STM), including field assisted diffusion, pulling and pushing atoms on the surface, contact or nearcontact atom transfer between STM tip and the surface, field evaporation/disorption, excitation by the tunneling electrons, and “wind force” caused by the electron emigration. Some theoretical methods and explanations to some experimental results are also given.
出处
《物理学进展》
CSCD
北大核心
1998年第2期177-186,共10页
Progress In Physics