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dc.creatorIvanovski, Valentin N.
dc.creatorBelošević-Čavor, Jelena
dc.creatorRajić, Vladimir
dc.creatorUmićević, Ana
dc.creatorMarković, Smilja
dc.creatorKusigerski, Vladan
dc.creatorMitrić, Miodrag
dc.creatorKoteski, Vasil
dc.date.accessioned2019-12-26T13:13:58Z
dc.date.issued2019
dc.identifier.issn0021-8979
dc.identifier.urihttps://aip.scitation.org/doi/10.1063/1.5095837
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/6883
dc.description.abstractIn order to study the effect of Fe cation substitution on the local structure, defect formation, and hyperfine interactions in ZnO, Mössbauer spectroscopy measurements of the microwave processed Zn1−xFexO (x=0.05, 0.10, 0.15, and 0.20) nanoparticles, together with ab initio calculations, were performed. Complementary information on the distribution of particle size and morphology, as well as magnetic properties, were obtained by X-ray diffraction, transmission electron microscopy, and squid-magnetometry. The selected model for analyzing the Mössbauer spectra of our samples is a distribution of quadrupole splittings. The fitting model with two Lorentz doublets was rejected due to its failure to include larger doublets. The Fe3+ ions do not yield magnetic ordering in the samples at room temperature. The results from first-principles calculations confirm that the major component of the Mössbauer spectra corresponds to the Fe-alloyed ZnO with Zn vacancy in the next nearest neighbor environment. The magnetic measurements are consistent with the description of the distribution of iron ions over the randomly formed clusters in the ZnO host lattice. While at room temperature all the samples are paramagnetic, magnetic interactions cause a transition into a cluster spin-glass state at low temperatures.en
dc.publisherAIP Publishing
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45018/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45004/RS//
dc.rightsembargoedAccess
dc.sourceJournal of Applied Physics
dc.titleA study of defect structures in Fe-alloyed ZnO: Morphology, magnetism, and hyperfine interactionsen
dc.typearticleen
dc.rights.licenseARR
dcterms.abstractМитрић, Миодраг; Белошевић-Чавор, Јелена; Рајић, Владимир; Котески, Васил; Кусигерски, Владан; Ивановски, Валентин Н.; Умићевић, Aна; Марковић, Смиља;
dc.citation.spage125703
dc.citation.volume126
dc.citation.issue12
dc.identifier.wos000488828300006
dc.identifier.doi10.1063/1.5095837
dc.identifier.scopus2-s2.0-85072611368
dc.type.versionpublishedVersion
dc.identifier.fulltexthttp://dais.sanu.ac.rs/bitstream/id/27449/Ivanovski_Journal-of-Applied-Physics_2019.pdf


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