engleski

Novel pathway towards the synthesis of complex double perovskites

The simultaneous presence of ferromagnetism and ferroelectricity in a single phase and possible spin-phonon couplings in these systems offers the appealing opportunity to design unconventional devices, such as multiple-state memory elements and electric-field controlled magnetic sensors. Mixed double perovskites, due to its structural diversity, represent a very promising platform in a quest for new multiferroics. A new synthesis route for the preparation of mixed metal oxides crystallizing in the double perovskite structural type will be presented and discussed. This procedure includes the thermal decomposition of the mixture containing two heterometallic molecular precursors (Ba-Nb oxalate- and Ni-Ta oxalate-based complexes!), in a specific ratio. A detailed X-rays powder diffraction study has been carried out in order to examine structural features of prepared oxide material containing two metals on both crystallographic sites (A and B) within perovskite lattice. The effect of thermal decomposition temperature on the microstructural parameters will be discussed as well.

double perovskite

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