We have studied the effects of disorder in a series of Sn films quench-condensed onto cryogenically cooled substrates. We find a simple scaling of the conductivity with film thickness Σ ~ (d - d c )Ν, with Ν ≅ 0.85, and a metal-insulator transition near d c ≅ 40–50 ». The superconducting transition temperatures depend linearly on 1/d, provided d is not too small, and the films exhibit strong annealing effects. These features are explained using a model in which grain boundary scattering dominates intragrain scattering.
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Markiewicz, R.S., Shiffman, C.A. & Ho, W. Superconductivity and disorder-driven metal-insulator transition in quench-condensed tin films. J Low Temp Phys 71, 175–191 (1988). https://doi.org/10.1007/BF00118574
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DOI: https://doi.org/10.1007/BF00118574