Abstract
Measurements of the superconducting transition temperature, lattice parameter and magnetic susceptibility are made on ternary Nb-Au-Pt alloys in the as cast and annealed conditions. Annealing reduced most of the alloys to A-15 structure as observed by X-ray diffraction, but metallographic microstructures of some of these alloys showed them to be still inhomogeneous. This inhomogeneity affects the values ofT c and χ- All the alloys are found to be nearly paramagnetic in nature, and χ follows the variation inT c for most of the alloys.
The experimental results are discussed in their relationship to other low temperature properties e.g. the electron-phonon interaction constant, the electron density of states and the lattice volume.
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We want to thank the Deutschen Forschungsgemeinschaft for support of this work.
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Khan, H.R., Röschel, E. & Raub, C.J. The superconductivity, structure and magnetic susceptibility of Nb y Au x -Pt(1−x)A-15 type phases. Z. Physik 262, 279–293 (1973). https://doi.org/10.1007/BF01400842
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DOI: https://doi.org/10.1007/BF01400842