Proceedings of the Second European Workshop on Low Temperature Electronics
J. Phys. IV France 06 (1996) C3-271-C3-276
Thermally Activated Dissipation and Upper Critical Magnetic Field under the Strong Electrostatic Field in the BiPbSrCaCuO Thin FilmV.S. Lysenko1, Y.V. Gomeniuk1, I.P. Tyagulski1, I.N. Osiyuk1, V.Z. Lozovski1 and V.N. Varyukhin2
1 Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 45 Prosp. Nauki, 252650 Kiev, Ukraine
2 Donetsk Physico-Technical Institute, National Academy of Sciences of Ukraine, 72 ul.R. Luxemburg, 340114 Donetsk, Ukraine
Three different regimes of thermally activated dissipation behaviour were determined in the superconducting (Bi,Pb)2Sr2Ca2Cu3Ox 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.
© EDP Sciences 1996