Year 2018

• Superconductivity in the superhard boride WB4.2

  Publication

  • E. M. Carnicom
  • J. Strychalska-Nowak
  • P. Wiśniewski
  • D. Kaczorowski
  • W. Xie
  • T. Klimczuk
  • R. Cava

  - SUPERCONDUCTOR SCIENCE & TECHNOLOGY - Year 2018

  We show that the superhard boride WB4.2 is a superconductor with a Tc of 2.05(5) K. Temperature-dependent magnetic susceptibility, electrical resistivity, and specific heat measurements were used to characterize the superconducting transition. The Sommerfeld constant γ for WB4.2 is 2.07(3) mJ mol−1 K−2 and the ΔC/γTc=1.56, which is somewhat higher than what is expected for weakly coupled Bardeen–Cooper–Schrieffer type superconductors....

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