六方晶系グラファイト表面原子構造のSTM観察

抄録

STM images of HOPG (highly oriented pyro-lytic graphite) (0001) surface have been obtained in a vacuum of 1×10^-5 Pa. A clear image of the hexagonal structure of the surface atoms was obtained. The height difference between the higher (lower) carbon site and the hollow site is 2.0Å(1.2Å). The values for the surface corrugation obtained in the present observations fairly well coincide with those predicted from theoretical calculations.