Partial Substitution of Cadmium and its Effect on the Electrical Properties of the Superconducting System (YBCO)

Abstract

In this work, the effect of partial substitution of Cadmium (Cd) instead of Copper (Cu) on the electrical properties of the compound (YBa2Cu3-xCdxO6+δ) was studied, where Cadmium fills the spaces between the granule cells. The compound was prepared using the state reaction method. Solid (SSR) with replacement ratios (x=0,0.1,0.2, and 0.3) The results were analyzed by conducting X-ray diffraction (XRD) examination to find the lattice constants and to know the crystal structure of the samples, so all samples showed a specific behavior based. As the electrical resistivity was studied as a function of the critical temperature, it was found that all samples showed superconductivity behavior, and the optimal sample was at the replacement ratio (X = 0.3), where the highest critical temperature was recorded (K 101.3Tc (offset=)( and the highest energy gap where the highest recorded Its value is (Eg = 0.030842051ev).