Dresden 2017 – wissenschaftliches Programm

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DF: Fachverband Dielektrische Festkörper

DF 9: Poster Session

DF 9.32: Poster

Dienstag, 21. März 2017, 14:00–16:00, P1C

Synthesis and characterization of Bi - based double perovskites — •D. E. Saavedra Mesa1,2, J. Roa-Rojas1, A. U.B. Wolter2, S. Aswartham2, S. Wurmehl2,3, and B. Büchner2,31Universidad Nacional de Colombia, Bogotá, Colombia — 2Leibniz Institute for Solid State and Material Research, Dresden, Germany — 3Institute of Solid State Physics TU Dresden, Dresden, Germany

The complex perovskite-type oxides with formula A2BB°O6 have been extensively investigated due to their wide range of physical properties. However, only four of them with Bi in the A position have been reported. Bi-based double perovskites are highly interesting because of their magneto-electric effects, where e.g. Bi2NiMnO6 has been found to be ferroelectric below 480 K. Here, we present a systematic investigation of synthesis and characterization of new Bi-based double perovskites such as Bi2BB°O6 (B=Ho, Dy & B° = Mn, Co). Polycrystalline samples of Bi2HoMnO6 were synthesized by the conventional solid state reaction method. The structural analysis was carried out with powder X-ray diffraction (XRD) experiments. The surface morphology was studied by scanning electron microscopy (SEM), and the composition was analyzed using energy dispersive spectrometry (EDX).

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DPG-Physik > DPG-Verhandlungen > 2017 > Dresden