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A comparative study of the thermodynamics of superconducting Nb0.75Zr0.25and Nb

✍ Scribed by B. Mitrović; J. P. Carbotte

Publisher
Springer US
Year
1981
Tongue
English
Weight
281 KB
Volume
43
Category
Article
ISSN
0022-2291

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✦ Synopsis

From the microscopic parameters derived from tunneling for Nbo.7sZro.25 and Nb we compute and compare their thermodynamic properties using the imaginary frequency axis formulation of EIiashberg theory. While these two materials have similar critical temperatures, Nbo.zsZro.2s is found to show much larger strong coupling corrections than does Nb. The substantial increase in the gap to critical temperature ratio observed experimentally can easily be understood by functional derivative techniques.

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