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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| Veröffentlicht in: | Dyna (Medellín, Colombia) Colombia), 2015-12, Vol.82 (194), p.66-71 |
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| creator | Londoño Navarro, Juanita Riaño-Rojas, Juan Carlos Restrepo-Parra, Elisabeth |
| 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. |
| doi_str_mv | 10.15446/dyna.v82n194.44297 |
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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.</description><identifier>ISSN: 0012-7353</identifier><identifier>EISSN: 2346-2183</identifier><identifier>DOI: 10.15446/dyna.v82n194.44297</identifier><language>eng</language><publisher>Bogota: Universidad Nacional de Colombia</publisher><subject>Anisotropía magnetocristalina ; core nanoparticle ; ENGINEERING, MULTIDISCIPLINARY ; Interacción dipolar ; Magnetic dipolar interaction ; Magnetic multi ; magnetita ; Magneto crystalline anisotropy ; Monte Carlo ; Nanopartículas multi ; núcleo</subject><ispartof>Dyna (Medellín, Colombia), 2015-12, Vol.82 (194), p.66-71</ispartof><rights>Copyright Universidad Nacional de Colombia 2015</rights><rights>This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.</rights><rights>LICENCIA DE USO: Los documentos a texto completo incluidos en Dialnet son de acceso libre y propiedad de sus autores y/o editores. Por tanto, cualquier acto de reproducción, distribución, comunicación pública y/o transformación total o parcial requiere el consentimiento expreso y escrito de aquéllos. Cualquier enlace al texto completo de estos documentos deberá hacerse a través de la URL oficial de éstos en Dialnet. Más información: https://dialnet.unirioja.es/info/derechosOAI | INTELLECTUAL PROPERTY RIGHTS STATEMENT: Full text documents hosted by Dialnet are protected by copyright and/or related rights. This digital object is accessible without charge, but its use is subject to the licensing conditions set by its authors or editors. Unless expressly stated otherwise in the licensing conditions, you are free to linking, browsing, printing and making a copy for your own personal purposes. All other acts of reproduction and communication to the public are subject to the licensing conditions expressed by editors and authors and require consent from them. Any link to this document should be made using its official URL in Dialnet. 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The influence of the easy axis direction was studied.</description><subject>Anisotropía magnetocristalina</subject><subject>core nanoparticle</subject><subject>ENGINEERING, MULTIDISCIPLINARY</subject><subject>Interacción dipolar</subject><subject>Magnetic dipolar interaction</subject><subject>Magnetic multi</subject><subject>magnetita</subject><subject>Magneto crystalline anisotropy</subject><subject>Monte Carlo</subject><subject>Nanopartículas multi</subject><subject>núcleo</subject><issn>0012-7353</issn><issn>2346-2183</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>FKZ</sourceid><recordid>eNpFkUtLAzEYRYMoWKu_wE3A9dQ85yFuSvEFFUG7D5nMN5AyTcZkqvTfm2mrLkIenBMu30XompIZlULkt83O6dlXyRytxEwIVhUnaMK4yDNGS36KJoRQlhVc8nN0EeOaECEpKSfILvymh8EO1jtcw_AN4LB2Nvoh-H6Xjg1ubO87HbB1AwRt9qh1eLPtBmt8AOy0870O6dZBvMOvPoF4oUPncbQJ06Nyic5a3UW4Ou5TtHp8WC2es-Xb08tivswMT7Ez2Tai5rpqS1OKyrS1hqLhsi4bxk0BhlY515RT2rQ8B8ZoDRxKVtSsNlALPkX3h28bqzsHg-qD3eiwU15b9fu2dTZYv9YKopq_r8g4HSaEHPXZQY_GQufV2m-DS3HVx8iocYKMUJmMPC1SJeHmIPTBf24hDv8KLaRkOStlkSh-oEzwMQZo_2JRovYVqrFCdaxQ7SvkP_zrkaQ</recordid><startdate>20151201</startdate><enddate>20151201</enddate><creator>Londoño Navarro, Juanita</creator><creator>Riaño-Rojas, Juan Carlos</creator><creator>Restrepo-Parra, Elisabeth</creator><general>Universidad Nacional de Colombia</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>CLZPN</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>KR7</scope><scope>L6V</scope><scope>M7S</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>GPN</scope><scope>AGMXS</scope><scope>FKZ</scope></search><sort><creationdate>20151201</creationdate><title>Competition between anisotropy and dipolar interaction in multicore nanoparticles: Monte Carlo simulation</title><author>Londoño Navarro, Juanita ; 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| subjects | Anisotropía magnetocristalina core nanoparticle ENGINEERING, MULTIDISCIPLINARY Interacción dipolar Magnetic dipolar interaction Magnetic multi magnetita Magneto crystalline anisotropy Monte Carlo Nanopartículas multi núcleo |
| title | Competition between anisotropy and dipolar interaction in multicore nanoparticles: Monte Carlo simulation |
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