Abstract
The electrical resistivity of the A15 compound Nb100−x Pt x (20≤x≤28.9) is measured as a function of compositionx from room temperature to the superconducting transition temperatureT c The residual resistivity ρ0 is observed to be nearly independent of composition on the Nb-rich side of stoichiometry, but strongly dependent on the Pt-rich side. A closeT c correlation with the resistivity slopedρ/dT at high temperatures and with the electronic specific heat coefficient γ, which are proportional to the superconducting coupling parameter λ, is noted. The results can be understood in terms of an order-disorder model.
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Moehlecke, S., Borges, H.A., Santos, C. et al. Resistivity as a function of composition in the superconducting Nb-Pt A15 phase. J Low Temp Phys 70, 449–457 (1988). https://doi.org/10.1007/BF00682158
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DOI: https://doi.org/10.1007/BF00682158