Synthesis Of Novel Double Perovskites With 4d/5d- and 3d-elements

Past research into double perovskites, with the general formula A₂BB’O₆, led to discovery of compounds that have a wide range of unique magnetic, thermal, and electrical properties. In this research project, two different transition metals occupy the B and B’ sites, with 3d transition metal occupying the B site and a 4d (or 5d) transition metal occupying the B’ site. The two sites differ as 3d transition metals tends to be more localized than the 4d (or 5d) transition metals. Additionally, 3d elements experience higher electron correlation, compared to their 4d and 5d counterparts, while the 4d and 5d transition metals tends to experience higher spin-orbit coupling interaction. Previous research into double perovskite compounds with the 3d and 4d/5d transition metals occupying the B and B’ site respectively, have shown the potential of these materials to host multiferroic properties, causing great interest for possible applications in sensors and memory devices. Synthesis of novel double perovskite materials that could host these properties will be discussed, as well as the various methods used in characterization, such as atomic composition and crystal structure. Some of these techniques include single crystal X-ray diffraction (SXRD) and Energy Dispersive X-ray Spectroscopy (EDS).