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Synthesis and magnetoelectric characterization of cobalt ferrite—barium titanate composites using a new pulsed magnetic field method
MARIA EUGENIA BOTELLO ZUBIATE
DARIO BUENO BAQUES
LUIS EDMUNDO FUENTES COBAS
JOSE ANDRES MATUTES AQUINO
Acceso Abierto
Sin Derechos Reservados
Cobalt Derrite
magnetoelectric
composite
magnetic pulsed fields
BaTiO3-CoFe2O4 composites synthesized by the ceramic method showed a magnetoelectric effect. The CoFe2O4 powders were synthesized by coprecipitation and mixed with Aldrich reactive quality BaTiO3 powders with particle size <2 μm. The coupling of the magnetostrictive and the piezoelectric phases via elastic deformations of the properly polarized composites produced a magnetoelectric effect. The starting powders and the composites were characterized by thermal analysis, x-ray diffraction with Reitveld refinements, scanning electron microscopy and particle size distribution using light scattering. The magnetoelectric coefficient, α = dE/dH, was measured using the dynamic method, and a new pulsed magnetic field method developed in our laboratory.
2006
Artículo
Inglés
OTRAS
Versión revisada
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