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Superconductivity in Th3Ni5C5

  • Author(s): MacHado, AJS
  • Grant, T
  • Fisk, Z
  • et al.
Abstract

The existence of a new metallic carbide of composition Th3Ni5C5was reported in the literature in 1991. This compound is a new orthorhombic prototype structure. In this work we report a reinvestigation of the synthesis of this material and we find that the Th3Ni5C5compound is a new bulk superconducting material. Despite the high concentration of Ni in this compound, we find bulk superconductivity with superconducting critical temperature of Tc= 5.0K and an upper critical field of μoHc2= 5.8T. Details of the superconducting state with specific heat, magnetization, and resistivity measurements are discussed. © 2011 IOP Publishing Ltd.

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