Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 302, Issue 1, Pages 118-121Publisher
ELSEVIER
DOI: 10.1016/j.jmmm.2005.08.025
Keywords
ZnMnO nanoclusters; room temperature ferromagnetism; magnetism origin; ZnMn2O4
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ZnMnO nanoclusters were synthesized by the sot-gel method. The structural and magnetic characters were investigated. The XRD spectrum shows ZnMnO nanoclusters are hexagonal wurtzite structures and a small quantity of ZnMn2O4 phase is also present in the spectrum. The percentages of Zn and Mn elements in the ZnMnO nanostructure are 97% and 3%, respectively, which are induced from XPS data. EPR spectrum with g = 1.9961 shows the signal of Mn2+. The magnetization curve measured at room temperature shows a hysteresis loop. XRD and XPS analyses prove that ferromagnetic ordering arises from ZnMn2O4 in all probability. (c) 2005 Elsevier B.V. All rights reserved.
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