Abstract
The system of C60 layer on Si(111)7×7–Co surface has a negligible lattice mismatch and with the designed two-step procedure which allows formation of the highly ordered Si(111)7×7–Co surface with domain size of ∼100nm, one could expect to achieve a perfect epitaxial growth of C60 molecular layer. However, using scanning tunneling microscopy observations we have found that regular C60 arrays grown on such a promising surface typically do not exceed the size of ∼10nm. It has been recognized that the main reason for lacking the long-range ordering in the C60 layer is occurrence of several adsorption sites within the 7×7unit cell.
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