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dc.contributor.authorSlöetjes, Samuel Dingeman
dc.contributor.authorUrdahl, Hans Henrik
dc.contributor.authorGrepstad, Jostein
dc.contributor.authorFolven, Erik
dc.date.accessioned2018-04-25T11:49:16Z
dc.date.available2018-04-25T11:49:16Z
dc.date.created2018-01-04T23:02:27Z
dc.date.issued2017
dc.identifier.issn2158-3226
dc.identifier.urihttp://hdl.handle.net/11250/2495931
dc.description.abstractThe emergent magnetism in close-packed assemblies of interacting superparamagnetic particles is commonly referred to as supermagnetism. The magnetic characteristics of such systems are determined by the dipolar coupling between the nanomagnets, rather than the exchange interaction responsible for ferro- and antiferromagnetism in continuous material. The dipolar coupling facilitates tuning of the magnetism, which renders supermagnetic ensembles suitable model systems for exploration of new physics. In this work, we discuss micromagnetic simulations of regular arrays of thin film nanomagnets, with magnetic material parameters typical of the ferromagnetic oxide La0.7Sr0.3MnO3. The ground state supermagnetic order in these systems is primarily determined by the lattice configuration, in that a square lattice results in antiferromagnetic order, whereas a triangular lattice shows ferromagnetic order. We found that a square lattice of circular nanomagnets may be switched from superferromagnetic to superantiferromagnetic order by a small external field applied in the appropriate directionnb_NO
dc.language.isoengnb_NO
dc.publisherAIP Publishingnb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleTailoring the magnetic order in a supermagnetic metamaterialnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.volume7nb_NO
dc.source.journalAIP Advancesnb_NO
dc.source.issue5nb_NO
dc.identifier.doi10.1063/1.4978319
dc.identifier.cristin1536281
dc.description.localcode© 2017 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). [http://dx.doi.org/10.1063/1.4978319]nb_NO
cristin.unitcode194,63,35,0
cristin.unitnameInstitutt for elektroniske systemer
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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