Preparation and characterization of RE doped La2-xSrxCuO4

Abstract We report on the systhesis of (La,RE) 2- x Sr x CuO 4 for various RE=Pr, Nd, Sm, Eu, Gd, Dy, Ho and Er as a function of the RE and Sr concentrations. The sample characterization by means of powder X-ray diffraction and EDX is described. We present our results on the solubility limit of the various RE in the T structure of La 2- x Sr x CuO 4 and discuss the systematic influence of RE and Sr doping on the structural properties. We furthermore show that doping with RE does not influence the charge carrier concentration of the samples.