中国物理B ›› 2008, Vol. 17 ›› Issue (5): 1858-1862.doi: 10.1088/1674-1056/17/5/052

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Structural and magnetic properties of Co1-xZnxFe2O4 nanoparticles

王 丽, 李发伸   

  1. Institute of Applied Magnetics, Key Laboratory for Magnetism and Magnetic Material of the Education Ministry, Department of Physics, Lanzhou University, Lanzhou 730000, China
  • 收稿日期:2007-09-07 修回日期:2007-10-12 出版日期:2008-05-20 发布日期:2008-05-20

Structural and magnetic properties of Co1-xZnxFe2O4 nanoparticles

Wang Li(王丽)† and Li Fa-Shen(李发伸)   

  1. Institute of Applied Magnetics, Key Laboratory for Magnetism and Magnetic Material of the Education Ministry, Department of Physics, Lanzhou University, Lanzhou 730000, China
  • Received:2007-09-07 Revised:2007-10-12 Online:2008-05-20 Published:2008-05-20

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摘要： Co1-xZnxFe2O4 nanoparticles, prepared by the polyvinyl alcohol sol--gel method, have been investigated by x-ray diffraction and M?ssbauer 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 M?ssbauer measurement shows that the transition temperatures for nanoparticles are higher than those of the bulk material except for the sample CoFe2O4.

关键词: ferrite, nanoparticle, M?ssbauer spectra

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.

Key words: ferrite, nanoparticle, M?ssbauer spectra

中图分类号: 

  • 75.75.+a
61.05.cp (X-ray diffraction) 75.50.Gg (Ferrimagnetics) 75.50.Tt (Fine-particle systems; nanocrystalline materials) 76.80.+y (M?ssbauer effect; other γ-ray spectroscopy) 81.20.Fw (Sol-gel processing, precipitation)