Competition between anisotropy and dipolar interaction in multicore nanoparticles: Monte Carlo simulation

Monte Carlo simulations combined with the Heisenberg model and Metropolis algorithm were used to study the equilibrium magnetic properties of magnetic multi-core nanoparticles of magnetite. Three effects were considered in this simulation: the Zeeman effect, magneto crystalline anisotropy, and dipol...

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Autores:
Londoño Navarro, Juanita
Riaño Rojas, Juan Carlos
Restrepo Parra, Elisabeth
Tipo de recurso:
Article of journal
Fecha de publicación:
2015
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/60612
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/60612
http://bdigital.unal.edu.co/58944/
Palabra clave:
62 Ingeniería y operaciones afines / Engineering
Magnetic multi-core nanoparticle
Monte Carlo
Magnetic dipolar interaction
Magneto crystalline anisotropy
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
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spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Londoño Navarro, Juanita2e93be8e-4d48-4e41-87b2-890de460ced2300Riaño Rojas, Juan Carlosfcef630e-a28a-4673-aa87-34ff79d2ae81300Restrepo Parra, Elisabethb0f71da3-6fff-42ef-b105-3cf17eda96a33002019-07-02T18:43:00Z2019-07-02T18:43:00Z2015-11-01ISSN: 2346-2183https://repositorio.unal.edu.co/handle/unal/60612http://bdigital.unal.edu.co/58944/Monte Carlo simulations combined with the Heisenberg model and Metropolis algorithm were used to study the equilibrium magnetic properties of magnetic multi-core nanoparticles of magnetite. Three effects were considered in this simulation: the Zeeman effect, magneto crystalline anisotropy, and dipolar interaction. Moreover, the influence of the size distribution (mean diameter and standard deviation) on the magnetization was analyzed. As an important result, a reduction of the equilibrium magnetization caused by the dipolar interaction and the magneto crystalline anisotropy was observed. On the other hand, the nanoparticle size increase produces an enhancement in the equilibrium magnetization, because of the lower influence of dipolar interaction. Cooling temperature effect was also observed, presenting a decrease in the equilibrium magnetization as the temperature was increased. The influence of the easy axis direction was studied.application/pdfspaUniversidad Nacional de Colombia (Sede Medellín). Facultad de Minas.https://revistas.unal.edu.co/index.php/dyna/article/view/44297Universidad Nacional de Colombia Revistas electrónicas UN DynaDynaLondoño Navarro, Juanita and Riaño Rojas, Juan Carlos and Restrepo Parra, Elisabeth (2015) Competition between anisotropy and dipolar interaction in multicore nanoparticles: Monte Carlo simulation. DYNA, 82 (194). pp. 66-71. ISSN 2346-218362 Ingeniería y operaciones afines / EngineeringMagnetic multi-core nanoparticleMonte CarloMagnetic dipolar interactionMagneto crystalline anisotropyCompetition between anisotropy and dipolar interaction in multicore nanoparticles: Monte Carlo simulationArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINAL44297-277836-1-PB.pdfapplication/pdf810843https://repositorio.unal.edu.co/bitstream/unal/60612/1/44297-277836-1-PB.pdfd8c409e2f616197707e822050c7742eaMD51THUMBNAIL44297-277836-1-PB.pdf.jpg44297-277836-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg9304https://repositorio.unal.edu.co/bitstream/unal/60612/2/44297-277836-1-PB.pdf.jpg63447f1527458eeabc880c6a39443573MD52unal/60612oai:repositorio.unal.edu.co:unal/606122023-04-08 23:04:26.07Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co
dc.title.spa.fl_str_mv Competition between anisotropy and dipolar interaction in multicore nanoparticles: Monte Carlo simulation
title Competition between anisotropy and dipolar interaction in multicore nanoparticles: Monte Carlo simulation
spellingShingle Competition between anisotropy and dipolar interaction in multicore nanoparticles: Monte Carlo simulation
62 Ingeniería y operaciones afines / Engineering
Magnetic multi-core nanoparticle
Monte Carlo
Magnetic dipolar interaction
Magneto crystalline anisotropy
title_short Competition between anisotropy and dipolar interaction in multicore nanoparticles: Monte Carlo simulation
title_full Competition between anisotropy and dipolar interaction in multicore nanoparticles: Monte Carlo simulation
title_fullStr Competition between anisotropy and dipolar interaction in multicore nanoparticles: Monte Carlo simulation
title_full_unstemmed Competition between anisotropy and dipolar interaction in multicore nanoparticles: Monte Carlo simulation
title_sort Competition between anisotropy and dipolar interaction in multicore nanoparticles: Monte Carlo simulation
dc.creator.fl_str_mv Londoño Navarro, Juanita
Riaño Rojas, Juan Carlos
Restrepo Parra, Elisabeth
dc.contributor.author.spa.fl_str_mv Londoño Navarro, Juanita
Riaño Rojas, Juan Carlos
Restrepo Parra, Elisabeth
dc.subject.ddc.spa.fl_str_mv 62 Ingeniería y operaciones afines / Engineering
topic 62 Ingeniería y operaciones afines / Engineering
Magnetic multi-core nanoparticle
Monte Carlo
Magnetic dipolar interaction
Magneto crystalline anisotropy
dc.subject.proposal.spa.fl_str_mv Magnetic multi-core nanoparticle
Monte Carlo
Magnetic dipolar interaction
Magneto crystalline anisotropy
description Monte Carlo simulations combined with the Heisenberg model and Metropolis algorithm were used to study the equilibrium magnetic properties of magnetic multi-core nanoparticles of magnetite. Three effects were considered in this simulation: the Zeeman effect, magneto crystalline anisotropy, and dipolar interaction. Moreover, the influence of the size distribution (mean diameter and standard deviation) on the magnetization was analyzed. As an important result, a reduction of the equilibrium magnetization caused by the dipolar interaction and the magneto crystalline anisotropy was observed. On the other hand, the nanoparticle size increase produces an enhancement in the equilibrium magnetization, because of the lower influence of dipolar interaction. Cooling temperature effect was also observed, presenting a decrease in the equilibrium magnetization as the temperature was increased. The influence of the easy axis direction was studied.
publishDate 2015
dc.date.issued.spa.fl_str_mv 2015-11-01
dc.date.accessioned.spa.fl_str_mv 2019-07-02T18:43:00Z
dc.date.available.spa.fl_str_mv 2019-07-02T18:43:00Z
dc.type.spa.fl_str_mv Artículo de revista
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dc.identifier.issn.spa.fl_str_mv ISSN: 2346-2183
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identifier_str_mv ISSN: 2346-2183
url https://repositorio.unal.edu.co/handle/unal/60612
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dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.spa.fl_str_mv https://revistas.unal.edu.co/index.php/dyna/article/view/44297
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Dyna
Dyna
dc.relation.references.spa.fl_str_mv Londoño Navarro, Juanita and Riaño Rojas, Juan Carlos and Restrepo Parra, Elisabeth (2015) Competition between anisotropy and dipolar interaction in multicore nanoparticles: Monte Carlo simulation. DYNA, 82 (194). pp. 66-71. ISSN 2346-2183
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
dc.rights.uri.spa.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0/
dc.rights.accessrights.spa.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
Derechos reservados - Universidad Nacional de Colombia
http://creativecommons.org/licenses/by-nc/4.0/
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.mimetype.spa.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia (Sede Medellín). Facultad de Minas.
institution Universidad Nacional de Colombia
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