Correlación entre la estructura cristalina y la T C en un superconductor de óxido de cobre: el caso CaLaBaCu3Oy

We studied the so-called CaLaBaCu O superconductor, which was prepared by two 3 y techniques: solid state reaction and precipitation; correlating their crystalline structures and superconducting critical temperature by means of the results of the Rietveld refinement of powder X-ray diffraction patterns, electron diffraction, scanning electron microscopy and magnetic susceptibility.