Competition of superconductivity and ferromagnetism in CexC 60 compounds

Y. Maruyama, S. Motohashi, N. Sakai, M. Tanaka, H. Ogata, Y. Kubozono

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

High temperature-treated compounds of mixed powders of cerium metal and C60 solid show fairly strong diamagnetic signal in the zero-field-cooling process and distinct ferromagnetic behavior in the field-cooling path below 13.5K and 15K, respectively. In the resistivity measurement of a compacted and long-term heated pellet of the powder a distinct drop of the resistivity with decreasing temperature is recognized around 20K, which is followed by a steep rise of the resistivity below 14K. These findings indicate an existing competition of superconductivity and ferromagnetism in this compound.

Original languageEnglish
Pages (from-to)737-738
Number of pages2
JournalSynthetic Metals
Volume135-136
DOIs
Publication statusPublished - Apr 4 2003
Externally publishedYes

Keywords

  • Fullerenes and derivatives
  • Magnetic phase transition
  • Superconducting phase transition

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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