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We have succeeded in imaging individual C60 molecules that have been adsorbed onto the tunneling region of a scanning tunneling microscopy tip. The individual tip-adsorbed molecules are imaged by scanning the fullerene-adsorbed tip over a defect covered graphite surface. The defects are generated by low energy argon ion bombardment and protrude from the graphite surface. These nanometer-size defects serve as a surface tip array which inverse images the molecules adsorbed to the tip when the surface is scanned.
Kelly et al. (Fri,) studied this question.