Voltage-induced coercivity reduction in nanoporous alloy films
Magnetic data storage and magnetically actuated devices are conventionally controlled by magnetic fields generated using electric currents. This involves significant power dissipation by Joule heating effect. To optimize energy efficiency, manipulation of magnetic information with lower magnetic fie...
| Autores: | , , , , , , , , , , , , , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2017 |
| País: | España |
| Recursos: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:189217 |
| Acesso em linha: | https://ddd.uab.cat/record/189217 https://dx.doi.org/urn:doi:10.1002/adfm.201701904 |
| Access Level: | acceso abierto |
| Palavra-chave: | Coercivity Energy efficiency Magnetic actuation Magnetoelectric effects Nanoporous alloys |
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Voltage-induced coercivity reduction in nanoporous alloy filmsa boost towards energy-efficient magnetic actuationQuintana, Alberto|||0000-0002-9813-735XZhang, JinIsarain-Chávez, Eloy|||0000-0002-4154-1343Menéndez, Enric|||0000-0003-3809-2863Quadrado del Burgo, Ramón|||0000-0002-8344-2319Robles, Roberto|||0000-0001-7808-0395Baró, M. D.|||0000-0002-8636-1063Guerrero, Miguel|||0000-0001-8350-8261Pané i Vidal, Salvador|||0000-0003-0147-8287Nelson, Bradley J.|||0000-0001-9070-6987Muller Jevenois, CarlosOrdejon, Pablo|||0000-0002-2353-2793Nogués, Josep|||0000-0003-4616-1371Pellicer, Eva|||0000-0002-8901-0998Sort, Jordi|||0000-0003-1213-3639CoercivityEnergy efficiencyMagnetic actuationMagnetoelectric effectsNanoporous alloysMagnetic data storage and magnetically actuated devices are conventionally controlled by magnetic fields generated using electric currents. This involves significant power dissipation by Joule heating effect. To optimize energy efficiency, manipulation of magnetic information with lower magnetic fields (i.e., lower electric currents) is desirable. This can be accomplished by reducing the coercivity of the actuated material. Here, a drastic reduction of coercivity is observed at room temperature in thick (≈600 nm), nanoporous, electrodeposited Cu-Ni films by simply subjecting them to the action of an electric field. The effect is due to voltage-induced changes in the magnetic anisotropy. The large surface-area-to-volume ratio and the ultranarrow pore walls of the system allow the whole film, and not only the topmost surface, to effectively contribute to the observed magnetoelectric effect. This waives the stringent "ultrathin-film requirement" from previous studies, where small voltage-driven coercivity variations were reported. This observation expands the already wide range of applications of nanoporous materials (hitherto in areas like energy storage or catalysis) and it opens new paradigms in the fields of spintronics, computation, and magnetic actuation in general. 22017-01-0120172017-01-01Articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/189217https://dx.doi.org/urn:doi:10.1002/adfm.201701904reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengEuropean Commission https://doi.org/10.13039/501100000780 676598European Commission https://doi.org/10.13039/501100000780 665919European Commission https://doi.org/10.13039/501100000780 648454Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 FIS2015-64886-C5-3-PMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 MAT2014-57960-C3-1-RMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2013-0295Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 RYC-2012-10839Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2014/SGR-1015Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2014/SGR-301open accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:1892172026-06-06T12:50:31Z |
| dc.title.none.fl_str_mv |
Voltage-induced coercivity reduction in nanoporous alloy films a boost towards energy-efficient magnetic actuation |
| title |
Voltage-induced coercivity reduction in nanoporous alloy films |
| spellingShingle |
Voltage-induced coercivity reduction in nanoporous alloy films Quintana, Alberto|||0000-0002-9813-735X Coercivity Energy efficiency Magnetic actuation Magnetoelectric effects Nanoporous alloys |
| title_short |
Voltage-induced coercivity reduction in nanoporous alloy films |
| title_full |
Voltage-induced coercivity reduction in nanoporous alloy films |
| title_fullStr |
Voltage-induced coercivity reduction in nanoporous alloy films |
| title_full_unstemmed |
Voltage-induced coercivity reduction in nanoporous alloy films |
| title_sort |
Voltage-induced coercivity reduction in nanoporous alloy films |
| dc.creator.none.fl_str_mv |
Quintana, Alberto|||0000-0002-9813-735X Zhang, Jin Isarain-Chávez, Eloy|||0000-0002-4154-1343 Menéndez, Enric|||0000-0003-3809-2863 Quadrado del Burgo, Ramón|||0000-0002-8344-2319 Robles, Roberto|||0000-0001-7808-0395 Baró, M. D.|||0000-0002-8636-1063 Guerrero, Miguel|||0000-0001-8350-8261 Pané i Vidal, Salvador|||0000-0003-0147-8287 Nelson, Bradley J.|||0000-0001-9070-6987 Muller Jevenois, Carlos Ordejon, Pablo|||0000-0002-2353-2793 Nogués, Josep|||0000-0003-4616-1371 Pellicer, Eva|||0000-0002-8901-0998 Sort, Jordi|||0000-0003-1213-3639 |
| author |
Quintana, Alberto|||0000-0002-9813-735X |
| author_facet |
Quintana, Alberto|||0000-0002-9813-735X Zhang, Jin Isarain-Chávez, Eloy|||0000-0002-4154-1343 Menéndez, Enric|||0000-0003-3809-2863 Quadrado del Burgo, Ramón|||0000-0002-8344-2319 Robles, Roberto|||0000-0001-7808-0395 Baró, M. D.|||0000-0002-8636-1063 Guerrero, Miguel|||0000-0001-8350-8261 Pané i Vidal, Salvador|||0000-0003-0147-8287 Nelson, Bradley J.|||0000-0001-9070-6987 Muller Jevenois, Carlos Ordejon, Pablo|||0000-0002-2353-2793 Nogués, Josep|||0000-0003-4616-1371 Pellicer, Eva|||0000-0002-8901-0998 Sort, Jordi|||0000-0003-1213-3639 |
| author_role |
author |
| author2 |
Zhang, Jin Isarain-Chávez, Eloy|||0000-0002-4154-1343 Menéndez, Enric|||0000-0003-3809-2863 Quadrado del Burgo, Ramón|||0000-0002-8344-2319 Robles, Roberto|||0000-0001-7808-0395 Baró, M. D.|||0000-0002-8636-1063 Guerrero, Miguel|||0000-0001-8350-8261 Pané i Vidal, Salvador|||0000-0003-0147-8287 Nelson, Bradley J.|||0000-0001-9070-6987 Muller Jevenois, Carlos Ordejon, Pablo|||0000-0002-2353-2793 Nogués, Josep|||0000-0003-4616-1371 Pellicer, Eva|||0000-0002-8901-0998 Sort, Jordi|||0000-0003-1213-3639 |
| author2_role |
author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Coercivity Energy efficiency Magnetic actuation Magnetoelectric effects Nanoporous alloys |
| topic |
Coercivity Energy efficiency Magnetic actuation Magnetoelectric effects Nanoporous alloys |
| description |
Magnetic data storage and magnetically actuated devices are conventionally controlled by magnetic fields generated using electric currents. This involves significant power dissipation by Joule heating effect. To optimize energy efficiency, manipulation of magnetic information with lower magnetic fields (i.e., lower electric currents) is desirable. This can be accomplished by reducing the coercivity of the actuated material. Here, a drastic reduction of coercivity is observed at room temperature in thick (≈600 nm), nanoporous, electrodeposited Cu-Ni films by simply subjecting them to the action of an electric field. The effect is due to voltage-induced changes in the magnetic anisotropy. The large surface-area-to-volume ratio and the ultranarrow pore walls of the system allow the whole film, and not only the topmost surface, to effectively contribute to the observed magnetoelectric effect. This waives the stringent "ultrathin-film requirement" from previous studies, where small voltage-driven coercivity variations were reported. This observation expands the already wide range of applications of nanoporous materials (hitherto in areas like energy storage or catalysis) and it opens new paradigms in the fields of spintronics, computation, and magnetic actuation in general. |
| publishDate |
2017 |
| dc.date.none.fl_str_mv |
2 2017-01-01 2017 2017-01-01 |
| dc.type.none.fl_str_mv |
Article http://purl.org/coar/resource_type/c_6501 AM http://purl.org/coar/version/c_ab4af688f83e57aa |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://ddd.uab.cat/record/189217 https://dx.doi.org/urn:doi:10.1002/adfm.201701904 |
| url |
https://ddd.uab.cat/record/189217 https://dx.doi.org/urn:doi:10.1002/adfm.201701904 |
| dc.language.none.fl_str_mv |
Inglés eng |
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Inglés |
| language |
eng |
| dc.relation.none.fl_str_mv |
European Commission https://doi.org/10.13039/501100000780 676598 European Commission https://doi.org/10.13039/501100000780 665919 European Commission https://doi.org/10.13039/501100000780 648454 Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 FIS2015-64886-C5-3-P Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 MAT2014-57960-C3-1-R Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2013-0295 Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 RYC-2012-10839 Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2014/SGR-1015 Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2014/SGR-301 |
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open access http://purl.org/coar/access_right/c_abf2 https://rightsstatements.org/vocab/InC/1.0/ |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 https://rightsstatements.org/vocab/InC/1.0/ |
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openAccess |
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application/pdf |
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reponame:Dipòsit Digital de Documents de la UAB instname:Universitat Autònoma de Barcelona |
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