Structural and magnetic properties of Co1-xZnxFe2O4 nanoparticles
Wang Li(王丽)† and Li Fa-Shen(李发伸)
Institute of Applied Magnetics, Key Laboratory for Magnetism and Magnetic Material of the Education Ministry, Department of Physics, Lanzhou University, Lanzhou 730000, China
Abstract Co1-xZnxFe2O4 nanoparticles, prepared by the polyvinyl alcohol sol--gel method, have been investigated by x-ray diffraction and Mössbauer spectroscopy. These results are compared with those for the bulk material. The lattice parameters of CoZn ferrite nanoparticles are larger than those of the bulk material. Thermal scanning of Mössbauer measurement shows that the transition temperatures for nanoparticles are higher than those of the bulk material except for the sample CoFe2O4.
Received: 07 September 2007
Revised: 12 October 2007
Accepted manuscript online:
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