Abstract
Many formulas of the BCS theory are of a universal character, for example, 2Δ = 3.52T c and β = (C s − C n )/C n = 1.43. In connection with this, we should note first of all that experimentally some pronounced deviations from this universality are observed (see Table 6.1). For example, for lead β = 2.4, and for the alloy Pb—Bi, 2Δ = 5T c .
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© 1990 Springer Science+Business Media New York
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Kresin, V.Z., Wolf, S.A. (1990). The Effects of Strong Coupling. Critical Temperature. In: Fundamentals of Superconductivity. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-2507-7_6
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DOI: https://doi.org/10.1007/978-1-4899-2507-7_6
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