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dc.contributor.authorLin, Aigu L.
dc.contributor.authorRodrigues, J. N B
dc.contributor.authorSu, Chenliang
dc.contributor.authorMilletari, M.
dc.contributor.authorLoh, Kian Ping
dc.contributor.authorWu, Tao
dc.contributor.authorChen, Wei
dc.contributor.authorNeto, A. H Castro
dc.contributor.authorAdam, Shaffique
dc.contributor.authorWee, Andrew T. S.
dc.date.accessioned2015-08-12T09:31:33Z
dc.date.available2015-08-12T09:31:33Z
dc.date.issued2015-06-23
dc.identifier.issn20452322
dc.identifier.pmid26100970
dc.identifier.doi10.1038/srep11430
dc.identifier.urihttp://hdl.handle.net/10754/566184
dc.description.abstractMagnetic materials have found wide application ranging from electronics and memories to medicine. Essential to these advances is the control of the magnetic order. To date, most room-temperature applications have a fixed magnetic moment whose orientation is manipulated for functionality. Here we demonstrate an iron-oxide and graphene oxide nanocomposite based device that acts as a tunable ferromagnet at room temperature. Not only can we tune its transition temperature in a wide range of temperatures around room temperature, but the magnetization can also be tuned from zero to 0.011 A m2/kg through an initialization process with two readily accessible knobs (magnetic field and electric current), after which the system retains its magnetic properties semi-permanently until the next initialization process. We construct a theoretical model to illustrate that this tunability originates from an indirect exchange interaction mediated by spin-imbalanced electrons inside the nanocomposite. © 2015 Scientific Reports.
dc.publisherSpringer Science and Business Media LLC
dc.relation.urlhttps://www.nature.com/articles/srep11430.pdf
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.
dc.rightsThis file is an open access version redistributed from: https://www.nature.com/articles/srep11430.pdf
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.titleTunable room-temperature ferromagnet using an iron-oxide and graphene oxide nanocomposite
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentLaboratory of Nano Oxides for Sustainable Energy
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalScientific Reports
dc.eprint.versionPublisher's Version/PDF
dc.identifier.arxividarXiv:1503.00960
kaust.personWu, Tao
refterms.dateFOA2020-06-30T12:43:40Z
dc.date.published-online2015-06-23
dc.date.published-print2015-09


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This 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.
Except where otherwise noted, this item's license is described as This 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.