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http://hdl.handle.net/10261/117648
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dc.contributor.author | Serrano-Ramón, Luis | - |
dc.contributor.author | Fernández-Pacheco, Amalio | - |
dc.contributor.author | Córdoba, R. | - |
dc.contributor.author | Magén, César | - |
dc.contributor.author | Rodríguez, Luis A. | - |
dc.contributor.author | Ibarra, M. Ricardo | - |
dc.contributor.author | Teresa, José María de | - |
dc.date.accessioned | 2015-07-07T09:36:55Z | - |
dc.date.available | 2015-07-07T09:36:55Z | - |
dc.date.issued | 2013 | - |
dc.identifier | doi: 10.1088/0957-4484/24/34/345703 | - |
dc.identifier | issn: 0957-4484 | - |
dc.identifier | e-issn: 1361-6528 | - |
dc.identifier.citation | Nanotechnology 24(34): 345703 (2013) | - |
dc.identifier.uri | http://hdl.handle.net/10261/117648 | - |
dc.description.abstract | Applications based on the movement of domain walls (DWs) in magnetic nanowires (NWs) require a good DW conduit behavior, i.e. a significant difference between DW nucleation and propagation fields. In this work, we have systematically studied how this property evolves in cobalt NWs grown by focused electron beam induced deposition (FEBID) as a function of global gallium irradiation, for irradiation doses up to 1.24 × 1017 ions cm-2. Whereas for high doses the DW conduit is lost, below 6.42 × 1015 ions cm-2 the difference between the two fields increases with irradiation, becoming up to ∼9 times larger than for non-irradiated wires, due to a strong increase in the nucleation field, while the propagation field remains approximately constant. This behavior stems from two effects. The first effect is a decrease in the magnetic volume of the parasitic halo around the NW, typically present in FEBID nanostructures, leading to the disappearance of weak nucleation centers. The second effect is the formation of a 20 nm outer shell with Co crystals about twice the size of those forming the NW core, causing a net increase of the local magnetocrystalline anisotropy. The results presented here are important for the potential use of magnetic NWs grown by FEBID in DW-based devices, and might also be of interest for magnetic NWs fabricated by other techniques. © 2013 IOP Publishing Ltd. | - |
dc.description.sponsorship | This research was supported by the MAT2011-27553-C02 and MAT2011-28532-CO3-02 projects funded by the Spanish Ministry of Economy (including FEDER funding), by the I-LINK0026 project funded by the Spanish CSIC, by a Marie Curie Intra European Fellowship project No. 251698: 3DMAGNANOW and by an Advanced Grant project No. 247368: 3SPIN, both funded by the 7th European Community Framework Programme. | - |
dc.publisher | Institute of Physics Publishing | - |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/251698 | - |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/247368 | - |
dc.rights | closedAccess | - |
dc.title | Improvement of domain wall conduit properties in cobalt nanowires by global gallium irradiation | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1088/0957-4484/24/34/345703 | - |
dc.date.updated | 2015-07-07T09:36:55Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.contributor.funder | European Commission | - |
dc.contributor.funder | Ministerio de Economía y Competitividad (España) | - |
dc.relation.csic | Sí | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000780 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003329 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | No Fulltext | - |
item.cerifentitytype | Publications | - |
item.openairetype | artículo | - |
item.grantfulltext | none | - |
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