Superconductivity of Fullerides with Tunable Crystal Structure and Band Filling.

DOI Web Site 18 References
  • Iwasa Y.
    Japan Advanced Institute of Science and Technology
  • Shimoda H.
    Japan Advanced Institute of Science and Technology
  • Takenobu T.
    Japan Advanced Institute of Science and Technology
  • Mitani T.
    Japan Advanced Institute of Science and Technology
  • Maniwa Y.
    Department of Physics, Tokyo Metropolitan University
  • Murakami Y.
    Photon Factory, National Laboratory for High Energy Physics
  • Ishii K.
    Department of Physics, The University of Tokyo
  • Suematsu H.
    Department of Physics, The University of Tokyo

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  • Superconductivity of Fullerides with Tu

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Abstract

Recent progress on superconductivity of fullerene based solids is reviewed with an emphasis on their pressure effect. Multinary fullerene compounds with alkali metals, alkaline earth metals, and neutral molecules have enabled us to control the band-filling and crystal structure. Among them, intercalation of neutral molecules afforded compounds with expanded lattice showing anomalous relations between lattice parameter and Tc. Experimental results of the pressure dependence of Tc revealed that Tc is not controlled simply by the lattice parameter in the large unit cell region. This phenomenon is possibly related to the proximity of superconductivity and antiferromagnetism in this region.

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