Crystal chemical simulation of superconductors on the basis of oxide and intermetalliclayers

Abstract

Simulation of ‘hybrid’ superconductors of 3d, 4d and 5d transition elements consisting oftwo different superconducting fragments located between positively charged ionsplanes—B′O2 oxideplanes and B2C2 intermetallic layers—has been performed on the basis of the structure ofSr2Mn3As2O2 (A2(B2C2)(B′O2)). The oxide planesare similar to those of CuO2 in high-temperature superconducting cuprates while the intermetallic layers are similar to those ofNi2B2 in low-temperature superconducting borocarbidesRNi2B2C and Fe2As2 layers in high-temperature superconducting oxypnictidesRFeAsO1−xFx.