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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References
M. Ishikawa and R. L. Cappelletti, J. Low Temp. Phys. 20, 407 (1975).
M. Ishikawa and L. E. Toth, Phys. Rev. B 3, 1856 (1971).
F. Heiniger, E. Bucher, and J. Muller, Phys. Kond. Materie 5, 243 (1966).
J. J. Hopfield, Phys. Rev. 186, 443 (1969); Physica 55, 41 (1971).
R. W. Rollins and L. C. Clune, Phys. Rev. B 6, 2609 (1972).
A. R. Miedema, J. Phys. F: Metal Phys. 4, 120 (1974).
N. N. Sirota and N. M. Shimanskaya, Dokl. Akad. Nauk. SSSR 222, 1089 (1975) [Sov. Phys.—Doklady 20, 451 (1975)].
A. Birnboim, Phys. Rev. B 14, 2857 (1976).
A. Weinkauf and J. Zittartz, Solid State Comm. 14, 365 (1974).
G. Kerker and K. H. Bennemann, Solid State Comm. 15, 29 (1974).
H. Lustfield, Solid State Comm. 17, 437 (1975).
H. Plumb and G. Cataland, Metrologia 2, 127 (1966).
W. L. McMillan, Phys. Rev. 167, 331 (1968).
A. R. Miedema, J. Less Common Metals 32, 117 (1973).
A. R. Miedema, J. Phys. F: Metal Phys. 3, 1803 (1973).
A. R. Miedema and M. H. van Maaren, Physica 69, 308 (1973).
A. R. Miedema, F. R. de Boer, and P. F. de Chatel, J Phys. F: Metal Phys. 3, 1558 (1973).
G. H. Bongi, J. Phys. F: Metal Phys. 6, 1535 (1976).
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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