Synthesis and magnetoelectric characterization of cobalt ferrite—barium titanate composites using a new pulsed magnetic field method
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 v...
| Autores: | , , , |
|---|---|
| Tipo de documento: | artigo |
| Estado: | Versión enviada para evaluación y publicación |
| Data de publicação: | 2006 |
| País: | México |
| Recursos: | Centro de Investigación en Materiales Avanzados |
| Repositório: | Fuente de Objetos Científicos Open Access del CIMAV |
| Idioma: | inglês |
| OAI Identifier: | oai:cimav.repositorioinstitucional.mx:1004/1007 |
| Acesso em linha: | http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1007 |
| Access Level: | Acceso aberto |
| Palavra-chave: | info:eu-repo/classification/barium titanate/Cobalt Derrite info:eu-repo/classification/magnetostrictive/magnetoelectric info:eu-repo/classification/magnetoelectric properties/composite info:eu-repo/classification/Cobalt ferrite/magnetic pulsed fields info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/22 info:eu-repo/classification/cti/2299 info:eu-repo/classification/cti/229999 |
| Resumo: | 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. |
|---|