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dc.contributor.authorPanchakarla, L S-
dc.contributor.authorSundarayya, Y-
dc.contributor.authorManjunatha, S-
dc.contributor.authorSundaresan, A-
dc.contributor.authorRao, C N R-
dc.date.accessioned2011-03-04T06:24:28Z-
dc.date.available2011-03-04T06:24:28Z-
dc.date.issued2010-06-07-
dc.identifier1439-4235en_US
dc.identifier.citationChemPhysChem 11(8), 1673-1679 (2010)en_US
dc.identifier.urihttp://hdl.handle.net/10572/58-
dc.descriptionRestricted access.en_US
dc.description.abstractThe occurrence of ferromagnetism in nanoparticles of otherwise non-magnetic oxides seems to be well established. It is, however, necessary to understand the origin of ferromagnetism in these materials. Herein, we present a combined study of the magnetic properties and photoluminescence (PL) behavior of nanoparticles of ZnO, ZrO2, and MgO annealed at different temperatures (and therefore of different sizes). We find that the magnetization and the intensity of the bands due to defects vary parallel in all these materials. The adsorption of ethanol leads to a decrease in the magnetization and to a reduced intensity of the defect PL band of ZnO nanoparticles whereas UV irradiation has the opposite effect. We have also examined the effect of the morphology of the ZnO on the properties.en_US
dc.description.sponsorshipCSIR New Delhien_US
dc.description.urihttp://dx.doi.org/10.1002/cphc.201000011en_US
dc.language.isoenen_US
dc.publisherWiley-VCH Verlag GmbHen_US
dc.rights© 2010 Wiley-VCH Verlag GmbH & Coen_US
dc.subjectMagnetic propertiesen_US
dc.subjectNnanoparticlesen_US
dc.subjectOxidesen_US
dc.subjectPhotoluminescenceen_US
dc.subjectTransmission electron microscopyen_US
dc.subjectMn-Doped Znoen_US
dc.subjectInorganic Nanoparticlesen_US
dc.subjectOptical-Propertiesen_US
dc.subjectPhotoluminescenceen_US
dc.subjectFerromagnetismen_US
dc.subjectNanorodsen_US
dc.subjectSemiconductorsen_US
dc.subjectPowdersen_US
dc.subjectMgOen_US
dc.subjectNanowiresen_US
dc.titleOn the Defect Origin of the Room-Temperature Magnetism Universally Exhibited by Metal-Oxide Nanoparticlesen_US
dc.typeArticleen_US
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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