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Specific heat measurements in superconducting and normal state Ta-Nb-V ternary solid solutions

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Specific heat measurements between 2 and 6 K on three bulk isoelectronic Ta x Nb y V1−x−y bcc solid solutions have been performed above and below their superconducting transition temperatures in and out of a 46-kOe field. The behavior of T c with alloying is well predicted by Miedema's charge-transfer method, which uses measured θD, but which has no adjustable parameters. Miedema's model also predicts γ correctly. Hopfield's method for T c fails in these alloys, and probably over the entire V-Nb-Ta system except very near the Nb-Ta line.

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Authors and Affiliations

  1. Department of Physics, Ohio University, Athens, Ohio

    R. Y. P. Wang & R. L. Cappelletti

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  1. R. Y. P. Wang
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  2. R. L. Cappelletti
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Work supported in part by a grant from the Ohio University Research Committee No. 503.

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Wang, R.Y.P., Cappelletti, R.L. Specific heat measurements in superconducting and normal state Ta-Nb-V ternary solid solutions. J Low Temp Phys 32, 481–494 (1978). https://doi.org/10.1007/BF00117965

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  • DOI: https://doi.org/10.1007/BF00117965

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