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dc.contributor.author
Saleh Medina, Leila María
dc.contributor.author
Jorge, Guillermo Antonio
dc.contributor.author
Negri, Ricardo Martin
dc.date.available
2019-06-12T15:11:09Z
dc.date.issued
2014-04
dc.identifier.citation
Saleh Medina, Leila María; Jorge, Guillermo Antonio; Negri, Ricardo Martin; Structural, dielectric and magnetic properties of Bi1 -xYxFeO3 (0 ≤ x ≤ 0.2) obtained by acid-base co-precipitation; Elsevier Science Sa; Journal of Alloys and Compounds; 592; 4-2014; 306-312
dc.identifier.issn
0925-8388
dc.identifier.uri
http://hdl.handle.net/11336/78065
dc.description.abstract
Bismuth-iron oxides with partial substitution of bismuth by yttrium, referred as (Bi1-xYx)FeO 3, were synthesized by simple-low cost acid-base co-precipitation method, which constitutes a difference with the currently used synthetic methods for obtaining BiFeO3-doped compounds (e.g. polymer assisted sol-gel, solid state, microwave, etc.) Samples were characterized by XRD, EDS, SEM, TEM, DSC and FTIR. The influence of yttrium (Y) substitution on magnetization curves of (Bi1-xYx)FeO3 powders were studied at room temperature by VSM. The particle size systematically decreases with the Y percentage. Ferromagnetic curves were obtained at room temperature for Y-percentage lower than 20% with relatively large values of the coercive field, Hc, which increases with Y-substitution, while for 20% yttrium a superparamagnetic behavior is observed. The electrical impedance of compressed disks were investigated also by impedance analysis in the range 1Hz-1MHz and the results were successfully fitted by a simple parallel R-C model. The dc-leakage currents are lower than previously reported for (Bi 1-xYx)FeO3 compounds and for most of the doped-BiFeO3 ceramics. As a difference with the influence on the magnetic behavior, the doping with yttrium does not seem to have a large influence on the dielectrical properties. These results suggest that magnetization can be systematically modified by the relatively simple co-precipitation synthesis while keeping invariable the dielectrical properties.© 2014 Elsevier B.V. All rights reserved.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science Sa
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Bismuth-Iron Oxides
dc.subject
Impedance Analysis
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Magnetization
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Multiferroic Compounds
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Yttrium Substitution
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Otras Ciencias Químicas
dc.subject.classification
Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Structural, dielectric and magnetic properties of Bi1 -xYxFeO3 (0 ≤ x ≤ 0.2) obtained by acid-base co-precipitation
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-06-11T19:44:09Z
dc.journal.volume
592
dc.journal.pagination
306-312
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Saleh Medina, Leila María. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
dc.description.fil
Fil: Jorge, Guillermo Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de General Sarmiento; Argentina
dc.description.fil
Fil: Negri, Ricardo Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
dc.journal.title
Journal of Alloys and Compounds
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.jallcom.2013.12.243
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0925838814000048
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