期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 323, 期 13, 页码 1817-1822出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2011.02.017
关键词
Nanostructured materials; Chemical synthesis; X-ray diffraction; Dielectric response; Magnetic property
Nanoparticles of Mn0.5Zn0.5 xCdxFe2O4 (x=0.0, 0.1, 0.2 and 0.3) have been synthesized by a chemical co-precipitation method. The lattice constant increases with increasing Cd content. X-ray calculations indicate that there is deviation in the cation distribution in the nanostructured spinel ferrite. The dielectric constant and dielectric loss decrease for the samples with Cd content up to x=0.2. However the dielectric constant rises for x=0.3. This is due to an increase in the hopping process at the octahedral (B sites). The dielectric constant increases with increase in temperature, indicating a thermally activated hopping process. The DC resistivity increases with Cd content up to x=0.2 and decreases for Cd content x=0.3. The maximum magnetization of all the samples decreases with increase in Cd content. (C) 2011 Elsevier B. V. All rights reserved.
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