The Effect of La on the Physical and Magnetic Properties of NiCuZn Ferrites
The Effect of La on the Physical and Magnetic Properties of NiCuZn Ferrites作者机构：Department of Physics Jahangirnagar University Dhaka Bangladesh Materials Science Division Atomic Energy Centre Dhaka Bangladesh Department of Physics KUET Khulna Bangladesh
出 版 物：《材料科学与工程（中英文B版）》 (Journal of Materials Science and Engineering B)
年 卷 期：2011年第1卷第7期
页 面：891-894页
学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 07[理学] 0809[工学-电子科学与技术（可授工学、理学学位）] 070205[理学-凝聚态物理] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学]
主 题：NiCuZn铁氧体 磁学性质 扫描电子显微镜 物理 射线密度 镧 晶格参数 居里温度
摘 要：Lanthanum-substituted NiCuZn ferrites Ni0.26Cu0.16Zn0.58LaxFe2-xO4 were prepared by usual ceramic method. The samples were investigated for their structural properties such as lattice parameter and density as a function of La content. The lattice parameter of the samples increased with the increasing of La which might be attributed to the larger ionic radius of La3+. The density slightly increased with the increasing of La content. The Scanning Electron Microscope (SEM) micrographs of the samples were observed to investigate grain sizes. It was also observed that bulk density was less than X-ray density. The electrical and magnetic properties such as resistivity, initial permeability, Curie temperature as a function of temperature, frequency and La content were also studied. The initial permeability at 100 kilohertz was found to increase at a certain limit and then decrease with the increasing of La content. The magnetic hysteresis loops of the samples were measured at room temperature.
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