ELECTRICAL CONDUCTIVITY OF CATION DEFICIENT DERIVATIVES OF NdBaCo2/3Fe2/3Cu2/3O5+δ LAYERED PEROVSKITE

Layered Nd1–xBaCo2/3Fe2/3Cu2/3O5+δ and NdBa1–xCo2/3Fe2/3Cu2/3O5+δ (x = 0,00–0,15) perovskites were obtained using a ceramic method, their crystal structure, microstructure and electrical conductivity were studied. It was found that all samples have a tetragonally distorted perovskite structure (space group P4/mmm), and their electrical conductivity had semiconducting character. It has been established that creating a deficiency of neodymium cations increases the conductivity of ceramics.