Superconductivity in the new quaternary ruthenium borocarbide Y-Ru-B-C system

Y. Y. Hsu, H. C. Chiang, H. C. Ku

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Two new quaternary borocarbide phases were discovered in the Y-Ru-B-C system: the (1111) YRuBC phase of the LuNiBC-type structure with tetragonal lattice parameters a =3.625-3.630 Å and c=7.775-7.874 Å, and the (1221) YRu2B2C phase of the LuNi2B 2C-type structure with tetragonal lattice parameters a=3.742-3.787 Å and c=10.278-10.453 Å. Bulk superconductivity of 9.7 K was observed from transport and magnetic measurements for the annealed YRu 2B2C sample with a short Ru-Ru bond length d(Ru-Ru) = √2 a/2=2.646 Å.

Original languageEnglish
Pages (from-to)6789-6791
Number of pages3
JournalJournal of Applied Physics
Issue number11
Publication statusPublished - 1998 Jan 1


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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