LOW-FREQUENCY ELECTROMAGNETIC RESPONSE FUNCTION FOR STRONG-COUPLING SUPERCONDUCTORS
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abstract
A simple method for calculating the low-frequency electromagnetic response function from tunneling derived 2()F() has been developed and applied to Pb, Pb0.90Bi0.10, amorphous Bi, amorphous Pb0.45Bi0.55, and amorphous Sn0.90Cu0.10. The results have been compared with previous calculations and experiments. A correction to the calculation of the T=0 values given by Kerchner and Ginsberg is given. Although the calculations agree with experiment for crystalline Pb, the calculated temperature dependence is much stronger near Tc than that inferred from kinetic inductance measurements for amorphous Bi. 1977 The American Physical Society.