New β-pyrochlore oxide superconductor CsOs2O6

Shigeki Yonezawa, Yuji Muraoka, Zenji Hiroi

Research output: Contribution to journalArticlepeer-review

123 Citations (Scopus)


The discovery of the new β-pyrochlore oxide superconductor CsOs 2O6 with Tc = 3.3 K is reported. It is the third superconductor in the family of β-pyrochlore oxides, following KOs2O6 with Tc = 9.6 K and RbOs 2O6 with Tc = 6.3 K. The Tc of this series decreases with increasing ionic radius of alkaline metal ions, imposing a negative chemical pressure upon the Os pyrochlore lattice.

Original languageEnglish
Pages (from-to)1655-1656
Number of pages2
Journaljournal of the physical society of japan
Issue number7
Publication statusPublished - Jul 2004
Externally publishedYes


  • Pyrochlore lattice
  • Superconductivity
  • β-pyrochlore oxide

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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