Synthesis, chemistry, electronic properties, and magnetism in the Y-Ba-Cu-O superconductor systems

The relation of sample preparation conditions, including oxygen concentration, annealing and hot isostatic pressing, to the superconducting critical temperature of the title materials is described. New synthetic materials are examined and characterized by a variety of techniques, including magnetic susceptibility measurements, ESR, electron microscopy and x-ray diffraction. The relationship between magnetization and critical current is examined