Abstract
Three different regimes of thermally activated dissipation behaviour were determined in the superconducting (Bi,Pb) 2 Sr 2 Ca 2 Cu 3 O x thin film in dependence on the external magnetic field. The negative electrostatic field applied to the film surface has been found to increase the activation energy of flux creep in relatively low magnetic fields. The upper critical magnetic field determined from resistive measurements increases in the vicinity of superconducting transition temperature under the influence of the electrostatic field.
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