Adjusting the transition temperature, the saturation current density with and without a magnetic field and the proportions of normally conducting phases of ceramic superconductors

摘要

The transition temperature, the saturation current density with and without a magnetic field and the proportions of normally conducting phases of ceramic superconductors having a structure derived from perovskite are adjusted by changing the content of the electronegative component or, where a plurality of such components is present, of one of the electronegative components in the ion lattice of the superconductor directly on the substrate.