Size and space controlled hexagonal arrays of superparamagnetic iron oxide nanodots: magnetic studies and application

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dc.contributor.author Ghoshal, Tandra
dc.contributor.author Maity, Tuhin
dc.contributor.author Senthamaraikannan, Ramsankar
dc.contributor.author Shaw, Matthew T.
dc.contributor.author Carolan, Patrick B.
dc.contributor.author Holmes, Justin D.
dc.contributor.author Roy, Saibal
dc.contributor.author Morris, Michael A.
dc.date.accessioned 2016-02-29T09:26:44Z
dc.date.available 2016-02-29T09:26:44Z
dc.date.issued 2013-09-27
dc.identifier.citation GHOSHAL, T., MAITY, T., SENTHAMARAIKANNAN, R., SHAW, M. T., CAROLAN, P., HOLMES, J. D., ROY, S. & MORRIS, M. A. 2013. Size and space controlled hexagonal arrays of superparamagnetic iron oxide nanodots: magnetic studies and application. Scientific Reports, 3, 2772. http://dx.doi.org/10.1038/srep02772 en
dc.identifier.volume 3 en
dc.identifier.startpage 2772 (1) en
dc.identifier.endpage 2772 (3) en
dc.identifier.issn 2045-2322
dc.identifier.uri http://hdl.handle.net/10468/2409
dc.identifier.doi 10.1038/srep02772
dc.description.abstract Highly dense hexagonally arranged iron oxide nanodots array were fabricated using PS-b-PEO self-assembled patterns. The copolymer molecular weight, composition and choice of annealing solvent/s allows dimensional and structural control of the nanopatterns at large scale. A mechanism is proposed to create scaffolds through degradation and/or modification of cylindrical domains. A methodology based on selective metal ion inclusion and subsequent processing was used to create iron oxide nanodots array. The nanodots have uniform size and shape and their placement mimics the original self-assembled nanopatterns. For the first time these precisely defined and size selective systems of ordered nanodots allow careful investigation of magnetic properties in dimensions from 50 nm to 10 nm, which delineate the nanodots are superparamagnetic, well-isolated and size monodispersed. This diameter/spacing controlled iron oxide nanodots systems were demonstrated as a resistant mask over silicon to fabricate densely packed, identical ordered, high aspect ratio silicon nanopillars and nanowire features. en
dc.description.sponsorship Science Foundation Ireland (SFI Semiconductor Corporation 2011-IN-2194 grant, 09/SIRG/I1621 grant, CSET CRANN grant, SFI PI project 11/PI/1201, SFI Principal Investigator support) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Nature Publishing Group, Macmillan Publishers Limited. en
dc.rights © The Authors, 2013.This work is licensed under a Creative Commons Attribution 3.0 Unported license. To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0 en
dc.rights.uri http://creativecommons.org/licenses/by/3.0 en
dc.subject Information storage en
dc.subject Magnetic materials en
dc.subject Magnetic properties and materials en
dc.subject Synthesis and processing en
dc.title Size and space controlled hexagonal arrays of superparamagnetic iron oxide nanodots: magnetic studies and application en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Justin D. Holmes, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: j.holmes@ucc.ie en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.internal.rssid 231934846
dc.contributor.funder Science Foundation Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Scientific Reports en
dc.internal.copyrightchecked !!CORA!! NPG Open Access Journal. "Authors publishing via the open access route are encouraged to deposit the final published PDF in their institutional repository ... Authors should provide a link from the deposited version to the URL of the published article on the journal's website". http://www.nature.com/openresearch/about-open-access/policies-journals/#Self-archiving en
dc.internal.IRISemailaddress j.holmes@ucc.ie en


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© The Authors, 2013.This work is licensed under a Creative Commons Attribution 3.0 Unported license. To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0 Except where otherwise noted, this item's license is described as © The Authors, 2013.This work is licensed under a Creative Commons Attribution 3.0 Unported license. To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0
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