Carbon-substitution effect on superconducting properties in MgB2 single crystals

T. Masui, S. Lee, A. Yamamoto, H. Uchiyama, S. Tajima

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Abstract

The superconducting properties of carbon-substituted MgB2 single crystals are studied. We found that C-substitution modifies superconducting properties such as anisotropy and irreversibility field. The highest H c2 can be achieved by the C-substitution around 3-5% per B-atom. In the superconductivity transition, the resistivity is almost ohmic; this is remarkable contrast to the case of C-free crystals.

Original languageEnglish
Pages (from-to)303-306
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume412-414
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2004 Oct 1

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Keywords

  • Anisotropy
  • Carbon-substitution
  • MgB
  • Resistivity

ASJC Scopus subject areas

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

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