Fascinating properties of multifunctional nanocomposites manganite/magnetite

被引：6
作者：
Ahmed, M. A. [1 ]
El-Dek, S. I. [1 ]
Abd Elazim, A. [2 ]
机构：
[1] Cairo Univ, Fac Sci, Dept Phys, Mat Sci Lab 1, Giza, Egypt
[2] Thebes Higher Inst Engn, Dept Basic Sci, Cairo, Egypt
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2014年 / 74卷
关键词：
Manganite/magnetite; Nanocomposite; XRD; HRTEM; Hysteresis; MAGNETIC-PROPERTIES; SUSCEPTIBILITY; NANOPARTICLES; NI;
D O I：
10.1016/j.spmi.2014.06.003
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Multifunctional nanocomposites La0.6Sr0.4MnO3/Fe3O4 (LSMO/Fe3O4) were prepared with different weight ratios and characterized using X-ray diffraction (XRD), high resolution transmission microscope (HRTEM) and vibrating sample magnetometer (VSM). The parent nanomaterials (LSMO and Fe3O4) were prepared by citrate nitrate auto combustion method and coprecipitation method respectively. Thermal dc magnetization curves were measured from room temperature up to 800 K for the nanocomposites. Vibrating sample magnetometer measurements reveal the enhancement of ferromagnetic properties with increasing magnetite ratio. Dielectric properties were reported and discussed for all investigated nanocomposites. The results recommend the use of such nanocomposites in memory devices and spintronics applications. (C) 2014 Published by Elsevier Ltd.
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页码：34 / 51
页数：18
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