Dependence of the structural and physical properties of Ru-1212 compound on the thermal treatment and oxygen content

We present structural and physical data obtained on Ru (Gd)-1212 compounds submitted, after solid state preparation, to different annealing procedures and thermal treatment. The samples were characterized by XRPD and TEM analysis. In addition structural refinement was performed according to the Rietveld method. Variations of both the superconducting and magnetic properties are presented and discussed.