Abstract：Nanocrystalline Ni0.5Zn0.5CexFe2-xO4(x=0,0.05) powders were prepared using polyacrylamide gel method with acrylamide as monomer and N,N′-methylenediacrylamide as lattice agent.The analysis methods of X-ray,FI-IR,TEM and wave-guide were used to characterize the products.The X-ray study showed that the pure spinel Ni0.5Zn0.5CexFe2-xO4(x=0,0.05) formed at 600℃.The average diameter of the Ni0.5Zn0.5Fe2O4 crystalline particles was about 30nm identified by TEM.The nanocrystalline Ni0.5Zn0.5CexFe2-xO4(x=0,0.05) had both dielectric loss(ε″) and magnetic loss(μ″),while the ε″ and μ″ of Ni0.5Zn0.5Ce0.05Fe1.95O4 were higher than that of Ni0.5Zn0.5Fe2O4.The maximum of ε″ and μ″ of the Ni0.5Zn0.5Ce0.05Fe1.95O4 was around 0.93 and 0.15,respectively.
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