摘要
本文所介绍的扫描隧道显微镜是一种用于表面研究的新技术,它可以实时地观察到物质表面原子在真实空间的排列及其电子性质。作者采用这种技术观察了天然石墨的(001)表面结构并首次拍摄了垂直于(001)方向的石墨的STM图象。在对碳纤维的观察中发现了一种类似于金刚石型的表面结构。
Introducing a new instrument called the Scanning Tunneling Microscope (STM) that is capable of observing the real-space images of surface showing
atomic structure in real-time and the electron nature of surface. The commer cially available models of NanoScope I and NanoScops ? were used to investigate the surface structure of nature graphite and electrically conductive amorphous Carbon whiskers. For the first time the tunneling image of nature graphite (001) surface was taken. A surface structure of carbon whisker that resemble the (001) layer of the diamond structure was discovered.
Keywords: Surface structure, Scanning Tunneling Microscope, Tunnel effect, Graphite, Carbon fiber, Distorted tetrohedron
出处
《现代地质》
CAS
CSCD
1990年第1期58-63,T004,共7页
Geoscience
