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.
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References
Sinha, S. K. (ed.) Ordering in Two Dimensions (Elsevier North Holland, Amsterdam, 1980).
Evans, S. D. & Ulman, A. Chem. Phys. Lett. 170, 462–466 (1990).
Dresselhaus, M. S., Dresselhaus, G. & Eklund, P. C. Science of Fullerenes and Carbon Nanotubes (Academic, San Diego, 1996).
Sakurai, T. et al. Prog. Surf. Sci. 51, 266– 408 (1996).
Fenter, P. in Thin Films — Self-Assembled Monolayers of Thiols Vol. 24 (ed. Ulman, A.) 121–125 (Academic, San Diego, 1998).
Hou, J. G. et al. Phys. Rev. Lett. 83, 3001– 3004 (1999).
Lu, J. P., Li, X.-P. & Martin, R. M. Phys. Rev. Lett. 68, 1551– 1554 (1992).
Birgeneau, R. & Horn, P. M. Science 232, 329–336 (1986).
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Hou, J., Jinlong, Y., Haiqian, W. et al. Topology of two-dimensional C60 domains. Nature 409, 304–305 (2001). https://doi.org/10.1038/35053163
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DOI: https://doi.org/10.1038/35053163
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