Author/Authors :
Hermiz, G.Y. University of Baghdad - College of Science - Department of Physics, Iraq , Abbass, M.M. University of Baghdad - College of Science, Iraq
Abstract :
Solid stale reaction technique (SSR) was used to prepare high-Tc phase in HgPbxBa2Ca2Cu_}Ojus superconductors. The effect of additional Pb to HgBa2Ca2Cii30R+$ was investigated. It has been found that the maximum transition temperature Tc —133K is at x=0.I.X-ray diffraction showed a tetragonal structure with an average value of c~ 15.816 A. The average value of the valence of copper (v) is equal to 2.025.There is an increasing of density with the enhancement of the concentration of Pl
