The effect of Sr2+ on the structure and magnetic properties of nanocrystalline cobalt ferrite

Araújo, José Humberto de; Lima, Aldenir Cavalcanti; Peres, Ana Paula Da Silva; Torres, Marco Antônio Morales; Medeiros, Susana Nóbrega de; Soares, João Maria; Melo, Daniel Macedo A.; Carriço, Artur da Silva

The effect of Sr2+ on the structure and magnetic properties of nanocrystalline cobalt ferrite

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dc.contributor.author	Araújo, José Humberto de
dc.contributor.author	Lima, Aldenir Cavalcanti
dc.contributor.author	Peres, Ana Paula Da Silva
dc.contributor.author	Torres, Marco Antônio Morales
dc.contributor.author	Medeiros, Susana Nóbrega de
dc.contributor.author	Soares, João Maria
dc.contributor.author	Melo, Daniel Macedo A.
dc.contributor.author	Carriço, Artur da Silva
dc.date.accessioned	2020-06-30T18:12:39Z
dc.date.available	2020-06-30T18:12:39Z
dc.date.issued	2015-04-15
dc.description.resumo	We report the effect of Sr2+ on the structure, morphology and magnetic properties of CoFe2O4 synthesized by microwave-assisted combustion method. Results from X-ray diffraction and Mössbauer spectroscopy at 298 K suggest the formation of a mixed spinel Sr2+ substituted CoFe2O4. However, secondary phases like CoO, SrCO3 and SrFeO2.96 were also observed. A decrease in the lattice parameter and particle size were observed with the addition of Sr2+. The crystallite size of ferrite phase ranged from 53 to 62 nm. Magnetic studies showed a gradual decrease in the saturation magnetization and remanence with the increase of Sr2+ content, and an increasing value of the coercive field	pt_BR
dc.identifier.citation	RODRIGUES, A.P.G.; GOMES, D.K.S.; ARAÚJO, J.H. ; MELO, D.M.A.; OLIVEIRA, N.A.S.; BRAGA, R.M. . Nanoferrites of nickel doped with cobalt: Influence of Co2+ on the structural and magnetic properties. Journal of Magnetism and Magnetic Materials, v. 374, p. 748-754, 2015. Disponível em: https://www.sciencedirect.com/science/article/pii/S0167577X15000798?via%3Dihub#! Acesso em: 25 jun. 2020. https://doi.org/10.1016/j.matlet.2015.01.066	pt_BR
dc.identifier.doi	10.1016/j.matlet.2015.01.066
dc.identifier.issn	0167-577X
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/29392
dc.language	en	pt_BR
dc.publisher	Elsevier	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Combustion method	pt_BR
dc.subject	Nanoparticles	pt_BR
dc.subject	CoFe2O4	pt_BR
dc.subject	Mössbauer spectroscopy	pt_BR
dc.subject	Magnetic properties	pt_BR
dc.title	The effect of Sr2+ on the structure and magnetic properties of nanocrystalline cobalt ferrite	pt_BR
dc.type	article	pt_BR