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Optical and structural properties of Mn-doped ZnO nanorods grown by aqueous chemical growth for spintronic applications
National Academic Science Ukraine, Ukraine.
National Academic Science Ukraine, Ukraine.
National Academic Science Ukraine, Ukraine.
National Academic Science Ukraine, Ukraine.
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2016 (English)In: Thin Solid Films, ISSN 0040-6090, E-ISSN 1879-2731, Vol. 601, 22-27 p.Article in journal (Refereed) PublishedText
Abstract [en]

The effect of Mn-doping on the structural, morphological, optical and magnetic properties of the ZnO:Mn nanorods (NRs) synthesized by aqueous chemical process is reported. Grown ZnO:Mn NRs are shown to have hexagonal end facets and the diameters increasing with nominal Mn content. Optical absorption measurements show a decrease in optical band gap with increase of Mn concentration. Raman spectroscopy revealed significant modification of the lattice vibrational properties of the ZnO matrix upon Mn doping. The additional Mn-related vibrational mode, intensity of which increases with amount of Mn can be regarded as an evidence of Mn incorporation into the host lattice of the ZnO. At high Mn concentrations, coexistence of hexagonal Zn1-xMnxO phase along with the secondary phases of ZnMn2O4 cubic spinel is revealed. Magnetic properties of ZnO: Mn NRs are studied by combinatorial atomic force microscopy and magnetic force microscopy imaging, and obtained clear magnetic contrast at room temperature provides a strong evidence of ferromagnetic behavior. (C) 2015 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE SA , 2016. Vol. 601, 22-27 p.
Keyword [en]
Zinc oxide; Nanorods; Aqueous chemical growth; Spintronics; Optical properties; Raman spectroscopy; Magnetic properties; Magnetic-force microscopy
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-126869DOI: 10.1016/j.tsf.2015.11.019ISI: 000371348700006OAI: oai:DiVA.org:liu-126869DiVA: diva2:917115
Available from: 2016-04-05 Created: 2016-04-05 Last updated: 2016-04-05

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Chey, Chan OeurnNour, OmerWillander, Magnus
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Physics and ElectronicsThe Institute of TechnologyFaculty of Science & Engineering
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Thin Solid Films
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