Structure and physical properties of Cs3+αC60 (α=0.0-1.0) under ambient and high pressures

S. Fujiki, Y. Kubozono, M. Kobayashi, T. Kambe, Y. Rikiishi, S. Kashino, K. Ishii, H. Suematsu, A. Fujiwara

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The intermediate phases Cs3+αC60 (α=0.0-1.0), have been prepared, and their structure and physical properties are studied by x-ray powder diffraction, Raman, ESR, electric conductivity, and ac susceptibility measurements under ambient and high pressures. The x-ray powder diffraction pattern of Cs3+αC60 (α =0.0-1.0) can be indexed as a mixture of the body-centered-orthorhombic (bco) and cubic (A15) phases. The A15 phase diminishes above 30 kbar. The broad ESR peak due to the conduction electron (c-ESR) is observed only for the phases around α=0.0 in Cs3+αC60. The resistivity of the Cs3+αC60 (α≠0) sample follows the granular metal theory and/or Sheng model even in the sample exhibiting a broad ESR peak. No superconducting transition is observed up to 10.6 kbar in (Cs3+αC60 (α≠0). These results present that bco phase of Cs3+αC60 (α=0) is a final candidate for a pressure-induced superconductor.

Original languageEnglish
Article number235425
Pages (from-to)2354251-2354257
Number of pages7
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume65
Issue number23
DOIs
Publication statusPublished - Jun 15 2002
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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