Method for controlling the transition temperature of ceramic superconductor, the saturation current with and without magnetic field and the ratio of normal conducting phase

摘要

Method for adjusting the critical temperature, the saturation current density in the presence or absence of a magnetic field and the proportions of normally conducting phases of ceramic superconductors having a structure derived from perovskite by altering the content of the electronegative component, or if a plurality are present, of one of the electronegative components in the ion lattice of the superconductor directly on the substrate.