Percolation-localization crossover and depression of the superconducting transition temperature in films of metal-insulator mixtures
G. DeutscherDepartment of Physics and Astronomy, Tel Aviv University, Ramat Aviv, Tel Aviv, IsraelA. M. GoldmanDepartment of Physics and Astronomy, Tel Aviv University, Ramat Aviv, Tel Aviv, IsraelH. MicklitzDepartment of Physics and Astronomy, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
1985en
ABI
Abstract
Recent experiments on the conductivity and the onset of superconductivity in thin metal-insulator-mixture films are interpreted in terms of an ansatz which provides a criterion for the crossover between percolation and localization. In agreement with experiment, this ansatz predicts that percolation dominates in large-grain structures and localization in amorphous ones, providing a unified view of the apparently disparate results on different types of metal-insulator mixtures.
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Cited by 40 references