Regensburg 2013 – wissenschaftliches Programm
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KR: Fachgruppe Kristallographie
KR 2: Multiferroics 2 (MA jointly with DF, DS, KR, TT)
KR 2.3: Vortrag
Montag, 11. März 2013, 15:30–15:45, H3
Multiferroic CoFe2O4/ BaTiO3 with core shell structure nanoparticles — •Morad Etier1, Vladimir V.Shvartsman1, Yanling Gao1, Joachim Landers2, Heiko Wende2, and Doru C.Lupascu1 — 1University of Duisburg-Essen, Institute for Materials Science, Essen, Germany — 2University of Duisburg-Essen, Faculty of Physics, Duisburg, Germany
Multiferroic materials exhibit ferroelectricity and ferromagnetism simultaneously. Combining piezoelectricity and magnetostriction components in the same composite received more interests in the modern researches. In this work we report synthesis and properties of cobalt iron oxide barium titanate composite with a core shell structure. To synthesize the samples we combine co-precipitation and organosol method. Phases content, microstructure and morphology were studied by x-ray diffraction, SEM and TEM. Multiferroic properties were proved by home-built Sawyer-Tower circuit and SQUID magnetometry. Temperature dependence of magnetic moment was measured in zero field cooling (ZFC) and field cooling (FC) and compared with those cobalt iron oxide nanopowder. The dielectric properties were studied using impedance spectroscopy.