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dc.contributor.authorIvanov, Yurii P.
dc.contributor.authorLeliaert, Jonathan
dc.contributor.authorCrespo, Adrian
dc.contributor.authorPancaldi, Matteo
dc.contributor.authorTollan, Christopher
dc.contributor.authorKosel, Jürgen
dc.contributor.authorChuvilin, Andrey
dc.contributor.authorVavassori, Paolo
dc.date.accessioned2019-01-09T14:01:51Z
dc.date.available2019-01-09T14:01:51Z
dc.date.issued2019-01-04
dc.identifier.citationIvanov YP, Leliaert J, Crespo A, Pancaldi M, Tollan C, et al. (2019) Design of intense nanoscale stray fields and gradients at magnetic nanorod interfaces. ACS Applied Materials & Interfaces. Available: http://dx.doi.org/10.1021/acsami.8b19873.
dc.identifier.issn1944-8244
dc.identifier.issn1944-8252
dc.identifier.doi10.1021/acsami.8b19873
dc.identifier.urihttp://hdl.handle.net/10754/630778
dc.description.abstractWe explore electrodeposited ordered arrays of Fe, Ni and Co nanorods embedded in anodic alumina membranes as a source of intense magnetic stray field gradients localized at the nanoscale. We perform a multiscale characterization of the stray fields using a combination of experimental methods (Magneto-optical Kerr effect, Virtual Bright Field Differential Phase Contrast Imaging) and micromagnetic simulations, and establish a clear correlation between the stray fields and the magnetic configurations of the nanorods. For uniformly magnetized Fe and Ni wires the field gradients vary following saturation magnetization of corresponding metal and the diameter of the wires. In the case of Co nanorods, very localized (~10 nm) and intense (> 1T) stray field sources are associated with the cores of magnetic vortexes. Confinement of that strong field at extremely small dimensions leads to exceptionally high field gradients up to 108 T/m. These results demonstrate a clear path to design and fine-tune nanoscale magnetic stray field ordered patterns with a broad applicability in key nanotechnologies, such as nanomedicine, nanobiology, nanoplasmonics and sensors.
dc.description.sponsorshipP.V., A.Ch., and M.P. acknowledge support from the Spanish Ministry of Economy, Industry and Competitiveness under the Maria de Maeztu Units of Excellence Programme - MDM-2016-0618, the Project FIS2015-64519-R, and (M.P.) the grant BES-2013-063690. J.L gratefully acknowledges postdoctoral research fellowships by the Fonds Wetenschappelijk Onderzoek (FWO-Vlaanderen) and the Ghent University Special Research Fund (BOF). We gratefully acknowledge the support of NVIDIA Corporation with the donation of the GPU’s used for this research. Y.P.I. acknowledge support from the grant 3.7383.2017/8.9 of Ministry of Education and Science of Russian Federation.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acsami.8b19873
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see .
dc.subjectnanomagnets arrays
dc.subjectTEM
dc.subjectMOKE
dc.subjectmicromagnetic simulations
dc.subjectpatterned stray fields
dc.titleDesign of intense nanoscale stray fields and gradients at magnetic nanorod interfaces
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentKing Abdullah University of Science and Technology, Thuwal, 23955, Saudi Arabia.
dc.identifier.journalACS Applied Materials & Interfaces
dc.eprint.versionPost-print
dc.contributor.institutionSchool of Natural Sciences, Far Eastern Federal University, 690950, Vladivostok, Russia.
dc.contributor.institutionDepartment of Materials Science & Metallurgy, University of Cambridge, Cambridge CB3 0FS, UK.
dc.contributor.institutionDept. of Solid State Sciences, Ghent University, BE9000 Ghent, Belgium.
dc.contributor.institutionCIC nanoGUNE Consolider, Av. de Tolosa 76, 20018, San Sebastian, Spain.
dc.contributor.institutionIKERBASQUE, Basque Foundation for Science, Maria Diaz de Haro 3, 48013, Bilbao, Spain.
kaust.authorKosel, Jürgen


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