Intralayer carbon substitution in the (formula presented) superconductor

Y. Iwasa, K. Prassides, T. Takenobu, Dam Hieu Chi, T. Ito

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We report that the ternary (formula presented) compounds adopt an isostructural (formula presented)-type hexagonal structure in a relatively small range of nominal carbon concentration, (formula presented) The lattice parameter a decreases almost linearly with increasing carbon content x, while the c parameter remains unchanged, indicating that carbon is exclusively substituted in the boron honeycomb layer without affecting the interlayer interactions. The superconducting transition temperature (formula presented) decreases quasilinearly as a function of the carbon concentration, with a slope steeper than that for the isoelectronic (formula presented).

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number13
Publication statusPublished - 2001
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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