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Topology of two-dimensional C60 domains

Author

Listed:
  • J. G. Hou

    (Structure Research Laboratory, University of Science and Technology of China
    Open Laboratory of Bond Selective Chemistry, University of Science and Technology of China)

  • Yang Jinlong

    (Structure Research Laboratory, University of Science and Technology of China
    Open Laboratory of Bond Selective Chemistry, University of Science and Technology of China)

  • Wang Haiqian

    (Structure Research Laboratory, University of Science and Technology of China)

  • Li Qunxiang

    (Open Laboratory of Bond Selective Chemistry, University of Science and Technology of China)

  • Zeng Changgan

    (Structure Research Laboratory, University of Science and Technology of China)

  • Yuan Lanfeng

    (Open Laboratory of Bond Selective Chemistry, University of Science and Technology of China)

  • Wang Bing

    (Structure Research Laboratory, University of Science and Technology of China)

  • D. M. Chen

    (Structure Research Laboratory, University of Science and Technology of China
    The Rowland Institute for Science)

  • Zhu Qingshi

    (Open Laboratory of Bond Selective Chemistry, University of Science and Technology of China)

Abstract

Two-dimensional systems possess a unique topological ordering that is not found in either three- or one-dimensional systems1. Using high-resolution scanning tunnelling microscopy, we show here that a 60-carbon-atom (C60) array on a self-assembled monolayer of an alkylthiol forms an ideal two-dimensional system which has another novel topological order originating from the orientational degrees of freedom. At a temperature of 5 K, the two-dimensional C60 forms a domain structure in which the correlation function of the molecular orientation within a domain is constant anywhere (so every C60 has the same orientation) but changes abruptly at domain boundaries. Remarkably, the positional order and the bond-orientational order are both fully preserved across domain boundaries.

Suggested Citation

  • J. G. Hou & Yang Jinlong & Wang Haiqian & Li Qunxiang & Zeng Changgan & Yuan Lanfeng & Wang Bing & D. M. Chen & Zhu Qingshi, 2001. "Topology of two-dimensional C60 domains," Nature, Nature, vol. 409(6818), pages 304-305, January.
    • Handle: RePEc:nat:nature:v:409:y:2001:i:6818:d:10.1038_35053163
    DOI: 10.1038/35053163
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