Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 302, Issue 2, Pages 340-342Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2005.09.029
Keywords
magnetic semiconductors; ZnNiO; magnetic properties; combustion method
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Polycrystalline Zn1-xNixO diluted magnetic semiconductors have been successfully synthesized by an auto-combustion method. X-ray diffraction measurements indicated that the 5 at% Ni-cloped ZnO had the pure wurtzite structure. Refinements of cell parameters from powder diffraction data revealed that the cell parameters of Zn0.95Ni0.05O were a little bit larger than ZnO. Transmission electron microscopy observation showed that the as-synthesized powders were of the size similar to 60 nm. Magnetic investigations showed that the nanocystalline Zn0.95Ni0.05O possessed room temperature ferromagnetisin with the saturation magnetic moment of 0.1 emu/g (0.29 mu(B)/Ni2+). (c) 2005 Elsevier B.V. All rights reserved.
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