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Defect-induced room temperature ferromagnetism in B-doped ZnO
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
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2013 (English)In: Ceramics International, ISSN 0272-8842, E-ISSN 1873-3956, Vol. 39, no 4, 4609-4617 p.Article in journal (Refereed) Published
Abstract [en]

ZnO microrods were grown on glass substrates by the spray pyrolysis method and boron was doped into the ZnO microrods by diffusion. X-ray diffraction results confirmed that the incorporation of B leads to a slight reduction in the deposit texture. Scanning electron microscopy measurements showed that the morphology of the ZnO samples changed from a microrod to nanocrystalline structure with B-doping. Photoluminescence data indicate that B-doping leads to a relative increase of the unstructured green band intensity. Magnetic measurements revealed that B-doped ZnO samples exhibited room temperature ferromagnetism related to defects, in agreement with first principles theoretical calculations. 

Place, publisher, year, edition, pages
2013. Vol. 39, no 4, 4609-4617 p.
Keyword [en]
ZnO:B, Photoluminescence, Ferromagnetism, First-principle calculation
National Category
Natural Sciences
URN: urn:nbn:se:uu:diva-201235DOI: 10.1016/j.ceramint.2012.11.060ISI: 000318129100144OAI: oai:DiVA.org:uu-201235DiVA: diva2:626928
Available from: 2013-06-10 Created: 2013-06-10 Last updated: 2013-06-10Bibliographically approved

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Nisar, JawadAhuja, Rajeev
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