Electric and Structural Properties of the New Ba2TiZrO6 Ferroelectric Complex Perovskite

We report the synthesis, structural characterization, morphologic and ferroelectric behavior of the Ba 2 TiZrO 6 complex perovskite. The samples of Ba 2 TiZrO 6 were synthesized through the standard solid-state reaction method. Rietveld analysis of X-ray diffraction patterns reveals that this material crystallizes in a rhombohedral structure, space group R-3 (#148), with cell parameter a =5.8038(7) Å. Images of Scanning Electron Microscopy show the micrometric granular character of samples with 1.0 μm grain size. Results of semi-quantitative Energy Dispersive X-ray analysis are 97.5 % in agreement with the nominal stoichiometry of Ba 2 TiZrO 6 . Curves of polarization as a function of the applied electric field reveal that the Ba 2 TiZrO 6 double perovskite behaves as a ferroelectric material at room temperature.