Title :
Magnetoelectric properties of 0.2CoFe2O4-0.8BaTiO3 composite prepared by organic method
Author :
Etier, Morad ; Gao, Yaling ; Shvartsman, Vladimir V. ; Lupascu, Doru C. ; Landers, Joachim ; Wende, Heiko
Author_Institution :
Inst. for Mater. Sci., Univ. of Duisburg-Essen, Essen, Germany
Abstract :
We have successfully synthesized CoFe2O4/BaTiO3 composite nanoparticles with core-shell structure using a new organosol crystallization method. The weight fraction of the ferroelectric and the ferrimagnetic phase was 80% and 20%, respectively. The nanopowders were sintered to form a ceramic composite. The ceramics exhibits the magnetoelectric effect. The value of the converse magnetoelectric coefficient αc measured by a modified SQUID susceptometer reaches 4.4·10-12 s·m-1 at the magnetic field μ0Hdc = 0.15 T and T = 285 K.
Keywords :
barium compounds; cobalt compounds; ferrimagnetic materials; ferroelectric ceramics; ferroelectricity; magnetoelectric effects; nanocomposites; nanofabrication; nanoparticles; sintering; CoFe2O4-BaTiO3; SQUID susceptometry; ceramic composites; composite nanoparticles; converse magnetoelectric coefficient; core-shell structure; ferrimagnetic phase; ferroelectric property; magnetic field; magnetic flux density 0.15 T; magnetoelectric properties; nanopowders; organosol crystallization method; sintering; temperature 285 K; Barium; Ceramics; Magnetic cores; Magnetic field measurement; Magnetoelectric effects; Magnetostriction; Powders; Mutliferroics; composite; magnetoelectric;
Conference_Titel :
Applications of Ferroelectrics held jointly with 2012 European Conference on the Applications of Polar Dielectrics and 2012 International Symp Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials (ISAF/ECAPD/PFM), 2012 Intl Symp
Conference_Location :
Aveiro
Print_ISBN :
978-1-4673-2668-1
DOI :
10.1109/ISAF.2012.6297820
