Superconducting phase sequence in Rx C60 fullerides (R=Sm and Yb)

Misaho Akada, Toshinari Hirai, Junji Takeuchi, Takao Yamamoto, Ryotaro Kumashiro, Katsumi Tanigaki

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The true superconducting phase in rare-earth C60 fullerides Rx C60 (R=Yb and Sm) is not R2.75 C60 previously reported. Moreover, no superconductivity is observed in Sm- C60 fullerides. The phase sequence between Yb- C60 fullerides and Sm- C60 ones as a function of the intercalant concentration of x is shown to be greatly different, although Yb and Sm are the same family of rare-earth elements with the divalent valence state. This can explain the loss of superconductivity in Smx C60 and suggests the true superconducting phase. The whole picture of rare-earth C60 fullerides is described.

Original languageEnglish
Article number094509
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume73
Issue number9
DOIs
Publication statusPublished - 2006 Mar 24

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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