Superconducting properties of the new boride-carbide superconductors

H. Takagi, R. J. Cava, H. Eisaki, J. O. Lee, K. Mizuhashi, B. Batlogg, S. Uchida, J. J. Krajewski, W. F. Peck

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Abstract

The uper critical field Hc2 and the lower critical field Hc1 have been measured for a new family of boride-carbide superconductors, LnNi2B2C (Ln=Lu and Y) and mixed-phase Y-Pd-B-C. The results for the Ni compounds indicate that these are clean-limit superconductors with a coherence length ξ of {reversed tilde}60 Å. A moderately high density of states, likely due to a dominant Ni 3d character near the Fermi level, is estimated from the obtained superconducting parameters, placing them in a comparable position to A-15 compounds in the linear specific-heat coefficient γ and Tc plot.

Original languageEnglish (US)
Pages (from-to)389-392
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume228
Issue number3-4
DOIs
StatePublished - Jul 20 1994
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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    Takagi, H., Cava, R. J., Eisaki, H., Lee, J. O., Mizuhashi, K., Batlogg, B., Uchida, S., Krajewski, J. J., & Peck, W. F. (1994). Superconducting properties of the new boride-carbide superconductors. Physica C: Superconductivity and its applications, 228(3-4), 389-392. https://doi.org/10.1016/0921-4534(94)90431-6