Abstract:The magnetic properties of small-K superconducting In-Bi, In-Tl, In-Pb, Sn-Bi, and Sn-Sb alloys are investigated. The evaluation of the experiments is carried out in the framework of BCS and GLAG theory. At a critical alloy concentration a phase transition occurs, at which type I superconductivity goes over into type II. Comparing the results with Lifshitz's theory, it is found that the phase transition is of higher than second order. The contribution from the nonanalytical part of the concentration dependen… Show more
“…AII these curves are demonstrated in [1,2] for the alloys of In-Bi, In-T1, In-Pb, Sn-Bi and Sn-Sb. Of these the typical Te-C, x(0)-C, H~i(0)-C and There are three ways of determining the GL parameter of the samples.…”
Macroscopic magnetic measurements were performed on superconducting alloys. From the results of these experiments microscopic parameters namely the energy gap and the vortex creation energy could be calculated. Their dependence on the additive material content (or on the GL-parameter) was determined. It was shown that the BCS and the GLAG theory are applicable for small-x superconductors in wide temperature interval.
“…AII these curves are demonstrated in [1,2] for the alloys of In-Bi, In-T1, In-Pb, Sn-Bi and Sn-Sb. Of these the typical Te-C, x(0)-C, H~i(0)-C and There are three ways of determining the GL parameter of the samples.…”
Macroscopic magnetic measurements were performed on superconducting alloys. From the results of these experiments microscopic parameters namely the energy gap and the vortex creation energy could be calculated. Their dependence on the additive material content (or on the GL-parameter) was determined. It was shown that the BCS and the GLAG theory are applicable for small-x superconductors in wide temperature interval.
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