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首页> 外文期刊>Iranian Journal of Science >Magnetic Studies of Nanocomposites of La-Substituted Bismuth Ferrite and Zn-Substituted Lithium Ferrite
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Magnetic Studies of Nanocomposites of La-Substituted Bismuth Ferrite and Zn-Substituted Lithium Ferrite

机译：Magnetic Studies of Nanocomposites of La-Substituted Bismuth Ferrite and Zn-Substituted Lithium Ferrite

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摘要

La-substituted BiFeO_3 and Zn-substituted Li_(0.5)Fe_(2.5)O_4 (LZFO) were synthesized by sol-gel and auto-combustion techniques, respectively. Nanocomposites of these two phases were prepared using the conventional ceramic method. They were pressed into pellets at an applied pressure of 100 kg wt/cm~2 and sintered at 600 ℃. The presence of the two phases in the synthesized nanocomposites was confirmed from selected area electron diffraction spectra using transmission electron microscope in conjunction with X-ray diffraction spectra. The morphology and magnetic properties of the sintered nanocomposites were investigated. The morphology of the sintered nanocomposites was analyzed using scanning electron microscope, and the particle sizes varied from 316 to 106 nm with increasing LZFO content. Transmission electron microscopy images give the grain size data of the sintered nanocomposites. Magnetic properties of the sintered nanocomposites were studied as a function of LZFO content using a M-H hysteresis curve. The possible mechanisms for the obtained results are discussed.

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