STM study on one-dimensional cluster formation processes of Y@C82 and C60 molecules

Y. Hasegawa, Y. Ling, S. Yamazaki, T. Hashizume, H. Shinohara, T. Sakurai

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    Using scanning tunneling microscopy (STM), we have studied cluster formation processes of fullerene molecules adsorbed on the Cu(111) 1 × 1 surface. We used two endohedral metallofullerenes; Y@C82 and Gd@C82, and pristine C60. All adsorbed molecules are observed at step edges of the surface, and thus their processes can be treated with a model of one-dimensional cluster formation. When small amounts of molecules are deposited on the surface, we found that the dimer is most abundant among the clusters of Y@C82 while monomers are dominant in the cases of Gd@C82 and C60. Since Y@C82 has an electronic spin while the others do not, we speculated that the preferred dimer formation of Y@C82 is owing to an interaction of the spin. Interaction energies among fullerene molecules were estimated based on a statistical analysis of the STM data.

    Original languageEnglish
    Pages (from-to)23-26
    Number of pages4
    JournalMaterials Science and Engineering A
    Volume217-218
    DOIs
    Publication statusPublished - 1996 Oct 30

    Keywords

    • Cluster formation
    • Metallofullerenes
    • Scanning tunneling microscopy

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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