X-ray diffraction and magnetic susceptibility of sodium fullerides NaxC60

Mototada Kobayashi, Nozomu Kimata, Satoshi Heguri

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    The X-ray diffraction (XRD), magnetic susceptibility and electron spin resonance (ESR) measurements have been carried out for NaxC60. The XRD profiles with x<4 can be assigned to a face-centered cubic (fcc) lattice, while those with 4≦x to a hexagonal one. The temperature dependence of magnetic susceptibility χ for NaxC60 using SQUID was fitted to the Curie law, and estimated temperature-independent component χ0. The composition x dependence of the χ0 for NaxC60 shows two maxima at around x=3 and x=10, and minimum at x=6. The absence of Pauli contribution at x=6 was confirmed using ESR. A trace of superconducting transition at 14 K has been found for some NaxC60 specimens with 8<x<9.

    Original languageEnglish
    Pages (from-to)689-691
    Number of pages3
    JournalJournal of Physics and Chemistry of Solids
    Volume71
    Issue number4
    DOIs
    Publication statusPublished - 2010 Apr 1

    Keywords

    • A. Fullerenes
    • B. Chemical synthesis
    • D. Crystal structure
    • Magnetic properties
    • Superconductivity

    ASJC Scopus subject areas

    • Chemistry(all)
    • Materials Science(all)
    • Condensed Matter Physics

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