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Síntesis, caracterización estructural y propiedades funcionales de polvos cerámicos de Sr0.5Ba0.5Nb2−xFexO6

Sr0.5Ba0.5Nb2-xFexO6 (SBNF) ceramic powders for x=0.00, x=0.02 and x=0.03 were synthesized using coprecipitation method. The structure of the SBNF single phase with x=0.02 was identified by X-ray diffraction and Rietveld refinement; the morphology and size of the particleswere observed by TEM and SE...

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Published in:Dyna (Medellín, Colombia) Colombia), 2021, Vol.88 (218), p.95-100
Main Authors: Gaona Jurado, Sonia, Ramírez Sanabria, Alfonso Enrique, Villaquirán Raigoza, Claudia Fernanda, Guerrero Duymovic, Alejandra Isabel, Molano Gabalán, William Arbey, Enriquez Fuertes, Juliana Paola
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Language:Spanish
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Summary:Sr0.5Ba0.5Nb2-xFexO6 (SBNF) ceramic powders for x=0.00, x=0.02 and x=0.03 were synthesized using coprecipitation method. The structure of the SBNF single phase with x=0.02 was identified by X-ray diffraction and Rietveld refinement; the morphology and size of the particleswere observed by TEM and SEM-EDS microscopy. Electrical characterization showed that Fe doping did not cancel the typical ferroelectric relaxor behavior and magnetic characterization showed a weak ferromagnetic response, which suggest that the samples obtained can be considered as multiferroic. Se sintetizaron polvos cerámicos de Sr0.5Ba0.5Nb2-xFexO6(SBNF) para x=0.00, x=0.02 y x=0.03 usando el método de coprecipitación. La estructura de la fase única SBNF con x=0.02 se identificó por difracción de rayos X y refinamiento de Rietveld; La morfología y el tamaño de las partículas se observaron mediante microscopía TEM y SEM-EDS. La caracterización eléctrica mostró que el dopaje con Fe no anuló el comportamiento típico del relajante ferroeléctrico y la caracterización magnética mostró una respuesta ferromagnética débil, lo que sugiere que las muestras obtenidas pueden considerarse como multiferroicas.
ISSN:0012-7353