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Eliashberg theory for disordered superconductors. II. Tunneling into disordered two-dimensional Pb films

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Zeitschrift für Physik B Condensed Matter

Abstract

We extend the Eliashberg-type equations for disordered bulk superconductors to the two-dimensional case and examine tunneling into disordered Pb films. We find, in contrast to the bulk case, a substantial effect of disorder on the tunneling density of states. Our results resemble qualitatively the experimental results on Pb films of varying sheet resistance (but also of varying thickness).

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  1. Department of Physics, Brock University, L2S3A1, St. Catharines, Ontario, Canada

    Thorsten Höhn & Božidar Mitrović

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  1. Thorsten Höhn
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  2. Božidar Mitrović
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Höhn, T., Mitrović, B. Eliashberg theory for disordered superconductors. II. Tunneling into disordered two-dimensional Pb films. Z. Physik B - Condensed Matter 93, 173–180 (1994). https://doi.org/10.1007/BF01316960

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  • DOI: https://doi.org/10.1007/BF01316960

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