Quasiparticle tunneling in superconducting films

It is shown experimentally that in a two-dimensional collection of bound superconducting granules random trajectories, along which quasiparticle tunneling can form, accompanied by the appearance of an energy gap, occur. The effects associated with the flow of vortices, which create a potential on the tunneling line and form resistive and normal domains in its vicinity, are distinguished. The voltage oscillations on the current-voltage characteristic of a film near the region of manifestation of the gap are explained.

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