Impurity inducedT c=0°K superconductivity

Kirschner, I.; Stark, A. A.

doi:10.1007/bf03157171

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(Ce/t)=st=-8(ozf/ot2)= 17razl/21

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1974

1988

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Cited by 5 publications

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“…The concentration dependence appears in Eqs. (13) and (15), but this cannot be strong since the alloys are dilute. Thus, in analogy with the former result we can expect that 8y=k(C-C~) '~ (18) where 0 < a < 1 and k is a constant.…”

Section: (Ce/t)=st=-8(ozf/ot2)= 17razl/2mentioning

confidence: 99%

A phase transition of higher than second order in small-? superconductors

Kirschner

Sajó

1980

J Low Temp Phys

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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 dependence of the electronic specific heat coefficient is 0.63-0.77, and thus the order of the phase transition increases by this amount.

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Section: (Ce/t)=st=-8(ozf/ot2)= 17razl/2mentioning

confidence: 99%