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Evaluación de las propiedades estructurales, morfológicas y magnéticas del sistema Bi1-xSmxFeO3

Abstract

This paper reports the synthesis of the Bi1-xSmxFeO3 system (x = 0.00, 0.02, 0.04, 0.06, 0.08 and 0.10) obtained by the
solid-state reaction method at 1073.15 K for 15 h. Characterization allowed evaluating the effect of Sm3+ insertion on the
structural, morphological and magnetic properties of the bismuth ferrite. Structural characterization was made by X-ray
Diffraction (XRD) and Rietveld refinement, indicating the formation of a rhombohedral majority phase of the space group
R3c (161) with a proportion higher than the reported up to now. The morphological characterization through scanning electron microscopy (SEM) allowed concluding that the insertion of samarium decreases the particle size from 7.5 μm to 2.5 μm, thanks to the smaller ionic radius, which also led to the contraction of the lattice parameters. The magnetic analysis showed a typical ferromagnetic behaviour in all of the synthesized samples, with the presence of a PM-AFM transition at 260 K.

Keywords

solid-state, bismuth ferrite, samarium, doping

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Author Biography

Iván Fernando Betancourt-Montañez

I.F. Betancourt-Montañez is a MSc. in Physics student from Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia. He is an active member of the research group Física de Materiales. He currently works on Materials Science.

Christian Fabian Varela-Olivera

Christian F. Varela is a MSc. in Chemistry from Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia.

He is an active member of the Physics of Materials research group. He is a professor at the Faculty of Basic Sciences and Engineering of the Universidad de los Llanos.

Julian Andres Munevar-Cagigas

A. Munevar-Cagigas is a PhD. in Physics from Centro Brasileiro De Pesquisas Físicas, He is a professor at the Centro de Ciências Naturais e Humanas at Universidade Federal do ABC, Santo André, Brasil.

Santiago Sandoval-Gutiérrez

Sandoval Gutiérrez is a MSc. in Physics from Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia.

He is a professor at the Faculty of Basic Sciences and Engineering of the Universidad de los Llanos and is an active member of the research group Sistemas Dinámicos. He currently works on Materials Science.

César Armando Ortíz-Otálora

C.A. Ortíz-Otálora is a MSc. in Physics from Universidad Nacional de Colombia. He is a professor at the School of Physics at Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia. He is in charge of an X-ray diffractometer and is an active member of the Grupo de Superficies Electroquímica y Corrosión - GSEC.

Carlos Arturo Parra-Vargas

C.A. Parra-Vargas is a PhD. in Physical Sciences from Universidad Nacional de Colombia. He is a professor at the School of Physics of the Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia, where he is also the coordinator of the research group Física de Materiales-GFM. He works on materials science.

Claudia Liliana Sánchez Sáenz

Claudia Liliana Sánchez-Sáenz is a PhD in educational Sciences. She is a Professor and researcher at Universidad Pedagógica y Tecnológica de Colombia. She is an active member of the Research group TelemaTICs at Universidad Pedagógica y Tecnológica de Colombia.


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