Single crystalline cylindrical nanowires – toward dense 3D arrays of magnetic vortices

Handle URI:
http://hdl.handle.net/10754/604701
Title:
Single crystalline cylindrical nanowires – toward dense 3D arrays of magnetic vortices
Authors:
Ivanov, Yurii P. ( 0000-0003-0271-5504 ) ; Chuvilin, Andrey; Vivas, Laura G.; Kosel, Jürgen ( 0000-0002-8998-8275 ) ; Chubykalo-Fesenko, Oksana; Vázquez, Manuel
Abstract:
Magnetic vortex-based media have recently been proposed for several applications of nanotechnology; however, because lithography is typically used for their preparation, their low-cost, large-scale fabrication is a challenge. One solution may be to use arrays of densely packed cobalt nanowires that have been efficiently fabricated by electrodeposition. In this work, we present this type of nanoscale magnetic structures that can hold multiple stable magnetic vortex domains at remanence with different chiralities. The stable vortex state is observed in arrays of monocrystalline cobalt nanowires with diameters as small as 45 nm and lengths longer than 200 nm with vanishing magnetic cross talk between closely packed neighboring wires in the array. Lorentz microscopy, electron holography and magnetic force microscopy, supported by micromagnetic simulations, show that the structure of the vortex state can be adjusted by varying the aspect ratio of the nanowires. The data we present here introduce a route toward the concept of 3-dimensional vortex-based magnetic memories.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Single crystalline cylindrical nanowires – toward dense 3D arrays of magnetic vortices 2016, 6:23844 Scientific Reports
Publisher:
Nature Publishing Group
Journal:
Scientific Reports
Issue Date:
31-Mar-2016
DOI:
10.1038/srep23844
Type:
Article
ISSN:
2045-2322
Sponsors:
O.C.-F. and M.V. acknowledge support from the Spanish Ministry of Economy and Competitiveness under the grants MAT2013-47078-C2-2-P and MAT2013-48054-C2-1-R. J.K. and Y.P.I. acknowledge support from King Abdullah University of Science and Technology (KAUST) and the Saudi Arabia Basic Industries Corporation (SABIC). A.C. acknowledges support from the Spanish Ministry of Science and Education, Consolider-Ingenio 2010 Program, Project No. CSD2006-53 and the Basque Government, ETORTEK Program, Project No. IE09-243.
Additional Links:
http://www.nature.com/articles/srep23844
Appears in Collections:
Articles; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorIvanov, Yurii P.en
dc.contributor.authorChuvilin, Andreyen
dc.contributor.authorVivas, Laura G.en
dc.contributor.authorKosel, Jürgenen
dc.contributor.authorChubykalo-Fesenko, Oksanaen
dc.contributor.authorVázquez, Manuelen
dc.date.accessioned2016-04-07T09:12:05Zen
dc.date.available2016-04-07T09:12:05Zen
dc.date.issued2016-03-31en
dc.identifier.citationSingle crystalline cylindrical nanowires – toward dense 3D arrays of magnetic vortices 2016, 6:23844 Scientific Reportsen
dc.identifier.issn2045-2322en
dc.identifier.doi10.1038/srep23844en
dc.identifier.urihttp://hdl.handle.net/10754/604701en
dc.description.abstractMagnetic vortex-based media have recently been proposed for several applications of nanotechnology; however, because lithography is typically used for their preparation, their low-cost, large-scale fabrication is a challenge. One solution may be to use arrays of densely packed cobalt nanowires that have been efficiently fabricated by electrodeposition. In this work, we present this type of nanoscale magnetic structures that can hold multiple stable magnetic vortex domains at remanence with different chiralities. The stable vortex state is observed in arrays of monocrystalline cobalt nanowires with diameters as small as 45 nm and lengths longer than 200 nm with vanishing magnetic cross talk between closely packed neighboring wires in the array. Lorentz microscopy, electron holography and magnetic force microscopy, supported by micromagnetic simulations, show that the structure of the vortex state can be adjusted by varying the aspect ratio of the nanowires. The data we present here introduce a route toward the concept of 3-dimensional vortex-based magnetic memories.en
dc.description.sponsorshipO.C.-F. and M.V. acknowledge support from the Spanish Ministry of Economy and Competitiveness under the grants MAT2013-47078-C2-2-P and MAT2013-48054-C2-1-R. J.K. and Y.P.I. acknowledge support from King Abdullah University of Science and Technology (KAUST) and the Saudi Arabia Basic Industries Corporation (SABIC). A.C. acknowledges support from the Spanish Ministry of Science and Education, Consolider-Ingenio 2010 Program, Project No. CSD2006-53 and the Basque Government, ETORTEK Program, Project No. IE09-243.en
dc.language.isoenen
dc.publisherNature Publishing Groupen
dc.relation.urlhttp://www.nature.com/articles/srep23844en
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/en
dc.titleSingle crystalline cylindrical nanowires – toward dense 3D arrays of magnetic vorticesen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalScientific Reportsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionInstituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049, Madrid, Spainen
dc.contributor.institutionCIC nanoGUNE Consolider, Av. de Tolosa 76, 20018, San Sebastian, Spainen
dc.contributor.institutionIKERBASQUE, Basque Foundation for Science, Maria Diaz de Haro 3, 48011, Bilbao, Spainen
dc.contributor.institutionPhysics and Materials Science Research Unit, University of Luxembourg, 162A Avenue de la Faïencerie, L-1511, Luxembourgen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorIvanov, Yurii P.en
kaust.authorKosel, Jürgenen
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