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dc.contributor.author
Sergio Ferrari
dc.contributor.author
Saccone, Fabio Daniel
dc.contributor.author
Aphesteguy, Juan Carlos
dc.date.available
2017-04-05T18:25:35Z
dc.date.issued
2015-06
dc.identifier.citation
Sergio Ferrari; Saccone, Fabio Daniel; Aphesteguy, Juan Carlos; Structural and magnetic properties of Zn doped magnetite nanoparticles obtained by wet chemical method; Institute of Electrical and Electronics Engineers; IEEE Transactions on Magnetics; 51; 6; 6-2015; 1-6
dc.identifier.issn
0018-9464
dc.identifier.uri
http://hdl.handle.net/11336/14847
dc.description.abstract
The structural and magnetic properties of Fe(3-x)ZnxO4(x: 0, 0.1, 0.2, 0.5, 1) nanoparticles, prepared by wet chemical method, have been studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), Mössbauer spectroscopy, and magnetization measurements. The nanoparticles are polyhedrical-shaped with a narrow distribution in size as it was verified by SEM. By Rietveld analysis of XRD patterns, it was determined that the crystallites' sizes of Fe(3-x)ZnxO4 in spinel structure is in the range of 30 to 50 nm. Hysteresis cycles, measured at different temperatures (300, 200, 100, 50, and 7 K), showed an increase in saturation, while temperature is diminished, as it is expected. All the samples, exhibited a high blocking temperature of ~350 K, as it was determined by zero field cooling-field cooling measurements. This fact, reveals their strongly interacting superparamagnetic nature. Real ac susceptibility increases with temperature, while the imaginary part has a maximum, which depends on frequency, and it is related to a critical temperature, which depends on composition. A Néel-Arrhenius dependence of frequency on the critical temperature was found for all the samples. We determined a minimum of the effective anisotropy for x=0.2.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Institute of Electrical and Electronics Engineers
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Zinc
dc.subject
Temperature Measurement
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Magnetic Hysteresis
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Nanoparticles
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Magnetic Properties
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Magnetic Resonance Imaging
dc.subject
Ferrites
dc.subject.classification
Ingeniería de los Materiales
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Ingeniería de los Materiales
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INGENIERÍAS Y TECNOLOGÍAS
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Nano-materiales
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Nanotecnología
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Structural and magnetic properties of Zn doped magnetite nanoparticles obtained by wet chemical method
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-04-03T17:30:41Z
dc.identifier.eissn
1941-0069
dc.journal.volume
51
dc.journal.number
6
dc.journal.pagination
1-6
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Sergio Ferrari. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería; Argentina; Argentina
dc.description.fil
Fil: Saccone, Fabio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería; Argentina; Argentina
dc.description.fil
Fil: Aphesteguy, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería; Argentina; Argentina
dc.journal.title
IEEE Transactions on Magnetics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6975229
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1109/TMAG.2014.2377132
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