ИСТИНА

In this work we present the results of the probe Mössbauer study of the double manganite BiMn7O12. Previously, this approach was successfully applied to the investigation of the features of the charge and orbital orderings in AMn7O12 manganites (A = Ca, Cd, Sr, Pb), which also have a double perovskite structure. The 57Fe atoms were used as probe Mössbauer nuclides, introduced into the structure of BiMn7O12 manganite. The samples of BiMn7-x57FexO12 (x = 0, 0.04) manganites were synthesized under high pressure and high temperature conditions (6 GPa, 1323 K).