Anisotropic superconducting property studies of single crystal PbTaSe.

J Phys Condens Matter

Institute of Physics, Academia Sinica, Taipei 11529, Taiwan. Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan.

Published: March 2017

AI Article Synopsis

  • The study reports on the superconducting properties of the PbTaSe single crystal, identifying a superconducting transition temperature (Tc) of approximately 3.83 K.
  • The measurements demonstrate type-II superconductivity with critical fields indicating anisotropic behavior when aligned to different crystal planes.
  • Additional parameters such as electronic coupling and heat capacity contribute to the classification of PbTaSe as a bulk superconductor.

Article Abstract

The anisotropic superconducting properties of PbTaSe single crystal is reported. Superconductivity with T   =  3.83  ±  0.02 K has been characterized fully with electrical resistivity ρ(T), magnetic susceptibility χ(T), and specific heat C (T) measurements using single crystal samples. The superconductivity is type-II with lower critical field H and upper critical field H of 65 and 450 Oe (H⊥  to the ab-plane), 140 and 1500 Oe (H|| to the ab-plane), respectively. These results indicate that the superconductivity of PbTaSe is anisotropic. The superconducting anisotropy, electron-phonon coupling λ , superconducting energy gap Δ, and the specific heat jump ΔC/γT at T confirms that PbTaSe can be categorized as a bulk superconductor.

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Source
http://dx.doi.org/10.1088/1361-648X/aa4edbDOI Listing

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