Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly
A numerically solved two-level Stoner-Wohlfarth model with thermal agitation is used to simulate Zero Field Cooling (ZFC)–Field Cooling (FC) curves of monosize and polysize samples and to determine the best method for obtaining a representative blocking temperature T<sub>B</sub> value of...
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Autores principales: | , , , , |
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Formato: | Articulo |
Lenguaje: | Inglés |
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2015
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Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/124066 |
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I19-R120-10915-124066 |
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record_format |
dspace |
institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
collection |
SEDICI (UNLP) |
language |
Inglés |
topic |
Ciencias Exactas Física Stoner-Wohlfarth model Magnetic nanoparticles |
spellingShingle |
Ciencias Exactas Física Stoner-Wohlfarth model Magnetic nanoparticles Bruvera, Ignacio Javier Mendoza Zélis, Pedro Calatayud, M. Pilar Goya, Gerardo Fabián Sánchez, Francisco Homero Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly |
topic_facet |
Ciencias Exactas Física Stoner-Wohlfarth model Magnetic nanoparticles |
description |
A numerically solved two-level Stoner-Wohlfarth model with thermal agitation is used to simulate Zero Field Cooling (ZFC)–Field Cooling (FC) curves of monosize and polysize samples and to determine the best method for obtaining a representative blocking temperature T<sub>B</sub> value of polysize samples. The results confirm a technique based on the T derivative of the difference between ZFC and FC curves proposed by Micha et al. (the good) and demonstrate its relation with two alternative methods: the ZFC maximum (the bad) and the inflection point (the ugly). The derivative method is then applied to experimental data, obtaining the T<sub>B</sub> distribution of a polysize Fe<sub>3</sub>O<sub>4</sub> nanoparticle sample suspended in hexane with an excellent agreement with TEM characterization. |
format |
Articulo Articulo |
author |
Bruvera, Ignacio Javier Mendoza Zélis, Pedro Calatayud, M. Pilar Goya, Gerardo Fabián Sánchez, Francisco Homero |
author_facet |
Bruvera, Ignacio Javier Mendoza Zélis, Pedro Calatayud, M. Pilar Goya, Gerardo Fabián Sánchez, Francisco Homero |
author_sort |
Bruvera, Ignacio Javier |
title |
Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly |
title_short |
Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly |
title_full |
Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly |
title_fullStr |
Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly |
title_full_unstemmed |
Determination of the blocking temperature of magnetic nanoparticles : The good, the bad, and the ugly |
title_sort |
determination of the blocking temperature of magnetic nanoparticles : the good, the bad, and the ugly |
publishDate |
2015 |
url |
http://sedici.unlp.edu.ar/handle/10915/124066 |
work_keys_str_mv |
AT bruveraignaciojavier determinationoftheblockingtemperatureofmagneticnanoparticlesthegoodthebadandtheugly AT mendozazelispedro determinationoftheblockingtemperatureofmagneticnanoparticlesthegoodthebadandtheugly AT calatayudmpilar determinationoftheblockingtemperatureofmagneticnanoparticlesthegoodthebadandtheugly AT goyagerardofabian determinationoftheblockingtemperatureofmagneticnanoparticlesthegoodthebadandtheugly AT sanchezfranciscohomero determinationoftheblockingtemperatureofmagneticnanoparticlesthegoodthebadandtheugly |
bdutipo_str |
Repositorios |
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1764820450742894594 |