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		题名	作者	年代	出处	被引量
	1	The effect of neodymium substitution on the structural and magnetic properties of nickel ferrite显示文摘Nickel ferrite Ni Fe2O4 is a typical soft magnetic ferrite with high electrical resistivity used as high frequency magnetic material. Neodymium(Nd3+) doped Ni Fe2O4 materials were fabricated using solid state reaction. The properties of the obtained material were investigated by X-Ray Diffraction(XRD), Scanning Electron Microscope(SEM), Fourier-Transform Infrared Spectroscopy(FT-IR), magnetic measurements on SQUID and M?ssbauer spectroscopy. It was found that the material consists of two different phases: Nd3+doped Ni Fet2O4and Nd Fe O3. The Nd3 ions occupy cation sites of the Ni Fe2O4 inverse spinel structure. NdFeO3 phase occurred when the level of Nd3+atoms exceed a percolation limit.The presence of both phases was confirmed by SEM observations. The M?ssbauer spectra analysis showed two sextets, which can be ascribed to iron atoms in tetrahedral and octahedral positions. From their intensities it is concluded that Nd3+occupies octahedral sites in the spinel structure of Ni Fe2O4, which were originally occupied by Ni2+.	Israfil Sabikoglu Levent Parali Ondrej Malina Petr Novak Josef Kaslik Jiri Tucek Jiri Pechousek Jakub Navarik Oldrich Schneeweiss	2015	Progress in Natural Science:Materials International2015，25，3：	0

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