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Noble Metal Intercalated Fullerene Fabricated by Low-Temperature Co-deposition

Authors

  • Genki Yoshikawa,

    Corresponding author
    1. World Premier International Center for Materials Nanoarchitectonics (MANA) National Institute for Materials Science (NIMS) 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)
    2. Institute for Materials Research (IMR), Tohoku University 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan)
    3. Department of Complexity Science & Engineering Graduate School of Frontier Sciences The University of Tokyo 5-1-5, Kashiwa-no-ha, Kashiwa, Chiba 277-8561 (Japan)
    • World Premier International Center for Materials Nanoarchitectonics (MANA) National Institute for Materials Science (NIMS) 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan).
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  • Yuki Tsuruma,

    1. Department of Complexity Science & Engineering Graduate School of Frontier Sciences The University of Tokyo 5-1-5, Kashiwa-no-ha, Kashiwa, Chiba 277-8561 (Japan)
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  • Susumu Ikeda,

    1. Department of Complexity Science & Engineering Graduate School of Frontier Sciences The University of Tokyo 5-1-5, Kashiwa-no-ha, Kashiwa, Chiba 277-8561 (Japan)
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  • Koichiro Saiki

    1. Department of Complexity Science & Engineering Graduate School of Frontier Sciences The University of Tokyo 5-1-5, Kashiwa-no-ha, Kashiwa, Chiba 277-8561 (Japan)
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Abstract

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A silver-intercalated fullerene (C60) is fabricated by depositing Ag and C60 simultaneously onto a substrate kept at low temperature (∼23 K), suppressing aggregation of cohesive Ag atoms. In situ conductivity measurements reveal a granular-metal state of Ag7C60 crystallites dispersed in an insulating C60 phase (see image). Ag-doped C60 will serve as a new platform for hydrogen-storage materials and novel superconductors.

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