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We have accumulated large pure carbon clusters (Fullerenes) on a surface. These clusters were produced by laser vaporization of graphite in a static rare-gas atmosphere. Their presence on the surface was confirmed by an isotope scrambling experiment using a laser-desorption/laser-ionization mass spectrometric detection scheme. © 1990 American Institute of Physics.
Robert D. Johnson, Mattanjah S. De Vries, et al.
Nature
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