ABSTRACT
Simultaneous doping of lanthanum gallate with alkalineearth elements and magnesium makes it possible to obtain a wide spectrum of compounds with ionic conductivity. The calculations of magnetization also point to the presence of highly nuclear clusters, their behavior having much in common with the behavior of super paramagnetic particles. Since the content of paramagnetic element can change during the sintering the chemical analysis of paramagnetic and diamagnetic doping elements was performed for all the solid solutions by method of atom emission spectroscopy with the inductive bonded plasma. The isotherms of paramagnetic susceptibility show that the exchange interactions in our solid solutions are antiferromagnetic. However, it must be emphasized that the isotherms lie essentially higher than for the samples containing no magnesium and the higher, the higher is magnesium content in the system. The dependence of susceptibility on the field strength appears as the result of the solid solution synthesis, but is not the result of introducing some ferromagnetic admixtures.
