Defect-mediated ferromagnetism in ZnO:Mn nanorods

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dc.authoridYilmaz, Salih/0000-0002-3006-4473
dc.authoridMcGlynn, Enda/0000-0002-3412-9035
dc.contributor.authorYilmaz, S.
dc.contributor.authorMcGlynn, E.
dc.contributor.authorBacaksiz, E.
dc.contributor.authorBogan, J.
dc.date.accessioned2025-01-06T17:45:05Z
dc.date.available2025-01-06T17:45:05Z
dc.date.issued2014
dc.description.abstractIn this work, the structural, chemical and magnetic properties of ZnO:Mn nanorods were investigated. Firstly, well-aligned ZnO nanorods with their long axis parallel to the crystalline c-axis were successfully grown by the vapor phase transport technique on Si substrates coated with a ZnO buffer layer. Mn metal was then diffused into these nanorods at different temperatures in vacuum. From SEM results, ZnO:Mn nanorods were observed to have diameters of similar to 100 nm and lengths of 4 mu m. XPS analysis showed that the Mn dopant substituted into the ZnO matrix with a valence state of +2. Magnetic measurements performed at room temperature revealed that undoped ZnO nanorods exhibit ferromagnetic behavior which may be related to oxygen vacancy defect-mediated d (0) ferromagnetism. ZnO:Mn samples were seen to show an excess room temperature ferromagnetism that is attributed to the presence of oxygen vacancy defects forming bound magnetic polarons involving Mn.
dc.description.sponsorshipresearch fund of Karadeniz Technical University, Trabzon, Turkey [2010.111.001.3]; Science Foundation Ireland Strategic Research Cluster grant entitled Functional Oxides and Related Materials for Electronics (FORME)
dc.description.sponsorshipS.Y. is grateful to the Council of Turkish Higher Education for its financial support in visiting foreign institutions. This work was supported by the research fund of Karadeniz Technical University, Trabzon, Turkey, under contract No. 2010.111.001.3. E.McG. gratefully acknowledges support from the Science Foundation Ireland Strategic Research Cluster grant entitled Functional Oxides and Related Materials for Electronics (FORME). All the authors also would like to thank Prof. Dr., S. Ozcan and Assoc. Prof. Dr. A. Ceylan for their efforts on magnetic measurements. All XPS analyses of the work were performed by Dr. M. Copuroglu in the Department of Chemistry of Bilkent University under the leadership of Prof. Dr., S. Suzer.
dc.identifier.doi10.1007/s00339-013-7817-x
dc.identifier.endpage321
dc.identifier.issn0947-8396
dc.identifier.issn1432-0630
dc.identifier.issue1
dc.identifier.scopus2-s2.0-84897912189
dc.identifier.scopusqualityQ2
dc.identifier.startpage313
dc.identifier.urihttps://doi.org/10.1007/s00339-013-7817-x
dc.identifier.urihttps://hdl.handle.net/20.500.14669/3289
dc.identifier.volume115
dc.identifier.wosWOS:000333612400044
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofApplied Physics A-Materials Science & Processing
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectMn-Doped Zno
dc.subjectRoom-Temperature Ferromagnetısm
dc.subjectThın-Fılms
dc.subjectMagnetıc-Propertıes
dc.subjectRaman-Scatterıng
dc.subjectNanopartıcles
dc.subjectSemıconductors
dc.subjectTransıstors
dc.subjectBulk
dc.titleDefect-mediated ferromagnetism in ZnO:Mn nanorods
dc.typeArticle

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