| 溶胶-凝胶法制备超细Sr_2FeMoO_6及磁性能研究 |
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| 引用本文： | 翟永清,张张,霍国燕,郝晓红,石领娟.溶胶-凝胶法制备超细Sr_2FeMoO_6及磁性能研究[J].材料工程,2009(12). |
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| 作者姓名： | 翟永清 张张 霍国燕 郝晓红 石领娟 |
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| 作者单位： | 河北大学,化学与环境科学学院,河北,保定,071002 |
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| 基金项目： | 国家自然科学基金资助项目，河北省教育厅博士基金资助项目 |
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| 摘 要： | 以活性炭为还原剂,采用溶胶-凝胶法制备双钙钛矿结构巨磁电阻材料Sr_2FeMoO_6.经XRD物相分析证明,产品为四方晶系Sr_2FeMoO_6,空间群为I4/mmm,晶胞参数:a=0.558nm,c=0.7882nm.SEM形貌分析表明,粉体颗粒分散性较好,粒子基本为球形,尺寸在100nm以下.磁性能测试结果表明,样品的居里温度高于室温,1T磁场下室温饱和磁化强度为13.59A·m~2·kg~(-1).
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| 关 键 词： | 溶胶-凝胶法 双钙钛矿 磁性能 |
Preparation of Superfine Sr_2FeMoO_6 by Sol-gel Method and Magnetic Properties |
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| ZHAI Yong-qing,ZHANG Zhang,HUO Guo-yan,HAO Xiao-hong,SHI Ling-juan.Preparation of Superfine Sr_2FeMoO_6 by Sol-gel Method and Magnetic Properties[J].Journal of Materials Engineering,2009(12). |
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| Authors: | ZHAI Yong-qing ZHANG Zhang HUO Guo-yan HAO Xiao-hong SHI Ling-juan |
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| Affiliation: | ZHAI Yong-qing,ZHANG Zhang,HUO Guo-yan,HAO Xiao-hong,SHI Ling-juan(College of Chemistry , Environmental Science,Hebei University,Baoding 071002,Hebei,China) |
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| Abstract: | With activated carbon for reducing agent,the sol-gel method was used to prepare the giant magnetoresistance materials Sr2FeMoO6,which was the double perovskite oxide.XRD pattern demonstrated that the as-synthesized sample was Sr2FeMoO6 with tetragonal crystal structure and I4/mmm space group,and unit cell parameter was a=0.558nm,c=0.7882nm.The SEM photograph showed that the primary particles were spherical in shape and the grain size was below 100nm.Magnetism testing results showed that the Curie temperatur... |
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| Keywords: | Sr_2FeMoO_6 sol-gel method double-perovskite Sr_2FeMoO_6 magnetic property |
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