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On the low frequency electromagnetic response of strong coupling superconductors

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Zeitschrift für Physik B Condensed Matter

Abstract

In this paper we report about penetration depth measurements performed on strong coupling Pb−Bi alloys. The change of penetration depth with temperature is obtained from the frequency shift of a superconducting resonant cavity. The experimental results are compared with the low frequency electromagnetic response kernel calculated from the strong coupling theory and the scaled weak coupling theory respectively. A very good agreement between experiment and strong coupling theory is observed. The fit of the scaled weak coupling theory to the measured change of penetration depth yields values of the superconducting energy gap, which agree with the corresponding results of tunneling measurements.

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Authors and Affiliations

  1. Physikalisches Institut der Universität, Engesserstraße 7, D-7500, Karlsruhe, Germany

    R. Blocksdorf & J. Hasse

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  1. R. Blocksdorf
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  2. J. Hasse
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Blocksdorf, R., Hasse, J. On the low frequency electromagnetic response of strong coupling superconductors. Z. Physik B - Condensed Matter 43, 193–198 (1981). https://doi.org/10.1007/BF01297518

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  • DOI: https://doi.org/10.1007/BF01297518

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