Аннотация:The search for new magnetic and topological materials is one of the leading directions in solid state chemistry and condensed matter physics. At present, double perovskites (DP) are of great interest due to the variety of functional properties [1, 2]. DP compounds with the possible presence of two different d-metals (TM) at the B (B, B') sites allow for greater crystal chemistry flexibility and exhibit even greater diversity of properties compared to a simple perovskite structure with one type A cation and one B cation site [2].