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dc.contributor.authorXing, G. Z.
dc.contributor.authorWang, D. D.
dc.contributor.authorCheng, C.-J.
dc.contributor.authorHe, M.
dc.contributor.authorLi, S.
dc.contributor.authorWu, Tao
dc.date.accessioned2015-05-05T14:46:59Z
dc.date.available2015-05-05T14:46:59Z
dc.date.issued2013-07-08
dc.identifier.citationEmergent ferromagnetism in ZnO/Al2O3 core-shell nanowires: Towards oxide spinterfaces 2013, 103 (2):022402 Applied Physics Letters
dc.identifier.issn00036951
dc.identifier.doi10.1063/1.4813217
dc.identifier.urihttp://hdl.handle.net/10754/552323
dc.description.abstractWe report that room-temperature ferromagnetism emerges at the interface formed between ZnO nanowire core and Al2O3 shell although both constituents show mainly diamagnetism. The interface-based ferromagnetism can be further enhanced by annealing the ZnO/Al2O3 core-shell nanowires and activating the formation of ZnAl2O4 phase as a result of interfacial solid-state reaction. High-temperature measurements indicate that the magnetic order is thermally stable up to 750 K. Transmission electron microscopy studies reveal the annealing-induced jagged interfaces, and the extensive structural defects appear to be relevant to the emergent magnetism. Our study suggests that tailoring the spinterfaces in nanostructure-harnessed wide-band-gap oxides is an effective route towards engineered nanoscale architecture with enhanced magnetic properties.
dc.publisherAIP Publishing
dc.relation.urlhttp://scitation.aip.org/content/aip/journal/apl/103/2/10.1063/1.4813217
dc.rightsArchived with thanks to Applied Physics Letters
dc.titleEmergent ferromagnetism in ZnO/Al2O3 core-shell nanowires: Towards oxide spinterfaces
dc.typeArticle
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.journalApplied Physics Letters
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDivision of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
dc.contributor.institutionSchool of Materials Science and Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
kaust.personWu, Tao
refterms.dateFOA2018-06-14T07:34:00Z


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