Strongly exchange coupled inverse ferrimagnetic soft/hard, Mn(x)Fe(3-x)O(4)/Fe(x)Mn(3-x)O(4), core/shell heterostructured nanoparticles
Inverted soft/hard, in contrast to conventional hard/soft, bi-magnetic core/shell nanoparticles of Mn xFe 3-xO 4/Fe xMn 3-xO 4 with two different core sizes (7.5 and 11.5 nm) and fixed shell thickness (∼0.6 nm) have been synthesized. The structural characterization suggests that the particles have a...
| Autores: | , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2012 |
| País: | España |
| Institución: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:2445/154901 |
| Acceso en línea: | https://hdl.handle.net/2445/154901 |
| Access Level: | acceso abierto |
| Palabra clave: | Ferrita Manganès Nanopartícules Propietats magnètiques Ferrite Manganese Nanoparticles Magnetic properties |
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oai:recercat.cat:2445/154901 |
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| network_name_str |
España |
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Strongly exchange coupled inverse ferrimagnetic soft/hard, Mn(x)Fe(3-x)O(4)/Fe(x)Mn(3-x)O(4), core/shell heterostructured nanoparticles López-Ortega, Alberto Estrader i Bofarull, Marta Salazar-Alvarez, German Estradé Albiol, Sònia Golosovsky, Igor V. Dumas, R.K. Keavney, D.J. Vasilakaki, Marianna Trohidou, Kalliopi N. Sort, Jordi Peiró Martínez, Francisca Suriñach, Santiago (Suriñach Cornet) Baró, M. D. Nogués, Josep Ferrita Manganès Nanopartícules Propietats magnètiques Ferrite Manganese Nanoparticles Magnetic properties Inverted soft/hard, in contrast to conventional hard/soft, bi-magnetic core/shell nanoparticles of Mn xFe 3-xO 4/Fe xMn 3-xO 4 with two different core sizes (7.5 and 11.5 nm) and fixed shell thickness (∼0.6 nm) have been synthesized. The structural characterization suggests that the particles have an interface with a graded composition. The magnetic characterization confirms the inverted soft/hard structure and evidences a strong exchange coupling between the core and the shell. Moreover, larger soft core sizes exhibit smaller coercivities and loop shifts, but larger blocking temperatures, as expected from spring-magnet or graded anisotropy structures. The results indicate that, similar to thin film systems, the magnetic properties of soft/hard core/shell nanoparticles can be fine tuned to match specific applications Royal Society of Chemistry https://hdl.handle.net/2445/154901 |
| title |
Strongly exchange coupled inverse ferrimagnetic soft/hard, Mn(x)Fe(3-x)O(4)/Fe(x)Mn(3-x)O(4), core/shell heterostructured nanoparticles |
| spellingShingle |
Strongly exchange coupled inverse ferrimagnetic soft/hard, Mn(x)Fe(3-x)O(4)/Fe(x)Mn(3-x)O(4), core/shell heterostructured nanoparticles López-Ortega, Alberto Ferrita Manganès Nanopartícules Propietats magnètiques Ferrite Manganese Nanoparticles Magnetic properties |
| title_short |
Strongly exchange coupled inverse ferrimagnetic soft/hard, Mn(x)Fe(3-x)O(4)/Fe(x)Mn(3-x)O(4), core/shell heterostructured nanoparticles |
| title_full |
Strongly exchange coupled inverse ferrimagnetic soft/hard, Mn(x)Fe(3-x)O(4)/Fe(x)Mn(3-x)O(4), core/shell heterostructured nanoparticles |
| title_fullStr |
Strongly exchange coupled inverse ferrimagnetic soft/hard, Mn(x)Fe(3-x)O(4)/Fe(x)Mn(3-x)O(4), core/shell heterostructured nanoparticles |
| title_full_unstemmed |
Strongly exchange coupled inverse ferrimagnetic soft/hard, Mn(x)Fe(3-x)O(4)/Fe(x)Mn(3-x)O(4), core/shell heterostructured nanoparticles |
| title_sort |
Strongly exchange coupled inverse ferrimagnetic soft/hard, Mn(x)Fe(3-x)O(4)/Fe(x)Mn(3-x)O(4), core/shell heterostructured nanoparticles |
| author |
López-Ortega, Alberto |
| author_facet |
López-Ortega, Alberto Estrader i Bofarull, Marta Salazar-Alvarez, German Estradé Albiol, Sònia Golosovsky, Igor V. Dumas, R.K. Keavney, D.J. Vasilakaki, Marianna Trohidou, Kalliopi N. Sort, Jordi Peiró Martínez, Francisca Suriñach, Santiago (Suriñach Cornet) Baró, M. D. Nogués, Josep |
| author_role |
author |
| author2 |
Estrader i Bofarull, Marta Salazar-Alvarez, German Estradé Albiol, Sònia Golosovsky, Igor V. Dumas, R.K. Keavney, D.J. Vasilakaki, Marianna Trohidou, Kalliopi N. Sort, Jordi Peiró Martínez, Francisca Suriñach, Santiago (Suriñach Cornet) Baró, M. D. Nogués, Josep |
| author2_role |
author author author author author author author author author author author author author |
| topic |
Ferrita Manganès Nanopartícules Propietats magnètiques Ferrite Manganese Nanoparticles Magnetic properties |
| topic_facet |
Ferrita Manganès Nanopartícules Propietats magnètiques Ferrite Manganese Nanoparticles Magnetic properties |
| description |
Inverted soft/hard, in contrast to conventional hard/soft, bi-magnetic core/shell nanoparticles of Mn xFe 3-xO 4/Fe xMn 3-xO 4 with two different core sizes (7.5 and 11.5 nm) and fixed shell thickness (∼0.6 nm) have been synthesized. The structural characterization suggests that the particles have an interface with a graded composition. The magnetic characterization confirms the inverted soft/hard structure and evidences a strong exchange coupling between the core and the shell. Moreover, larger soft core sizes exhibit smaller coercivities and loop shifts, but larger blocking temperatures, as expected from spring-magnet or graded anisotropy structures. The results indicate that, similar to thin film systems, the magnetic properties of soft/hard core/shell nanoparticles can be fine tuned to match specific applications |
| publishDate |
2012 |
| format |
article |
| status_str |
acceptedVersion |
| url |
https://hdl.handle.net/2445/154901 |
| eu_rights_str_mv |
openAccess |
| publisher |
Royal Society of Chemistry |
| institution |
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| collection |
Recercat. Dipósit de la Recerca de Catalunya |
| reponame_str |
Recercat. Dipósit de la Recerca de Catalunya |
| instname_str |
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| _version_ |
1878739196449914880 |
| publishDateSort |
2012 |
| author_browse |
Baró, M. D. Dumas, R.K. Estrader i Bofarull, Marta Estradé Albiol, Sònia Golosovsky, Igor V. Keavney, D.J. López-Ortega, Alberto Nogués, Josep Peiró Martínez, Francisca Salazar-Alvarez, German Sort, Jordi Suriñach, Santiago (Suriñach Cornet) Trohidou, Kalliopi N. Vasilakaki, Marianna |
| publisherStr |
Royal Society of Chemistry |
| score |
6,9008884 |