C₆₀分子在低维晶格中的取向序

Orientational Order of C₆₀ Molecules in Low dimensional Lattice

        侯建国(中国科学技术大学 合肥230026)

         C60;低维晶格;取向序

        取向序是由大分子或团簇构成的新型材料的一个重要概念。利用高分辨扫描隧道显微镜 ,对两种典型的低维C60 分子晶格体系的取向序进行了研究 :二维C60 分子阵列和C60 分子多层膜(111)表面。由于外部晶场环境的改变 ,这两种体系的分子取向序与宏观C60 晶体材料有着明显不同 ,并且出现了一些特殊现象。

        The orientational order is an important concept of the materials composed of large molecules or clusters. Using high resolution scanning tunneling microscopy, we have studied the orientational order of two kinds of typical low dimensional C 60 lattices: two dimensional molecules array and C60(111) multiplayer film surface. Due to the change of the crystal field, their orientational orders are distinctly different from those in bulk system, and some unique phenomena appear.