| Sr、Co共掺多铁性材料BiFeO3的性能 |
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| 引用本文： | 熊建功,张创伟,王康,孔令仪,赵弋菲,陈龙,李永涛.Sr、Co共掺多铁性材料BiFeO3的性能[J].材料导报,2018,32(10):1582-1586. |
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| 作者姓名： | 熊建功 张创伟 王康 孔令仪 赵弋菲 陈龙 李永涛 |
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| 作者单位： | 南京邮电大学电子科学与工程学院,南京,210023
南京邮电大学通信与信息工程学院,南京,210023
南京邮电大学理学院,南京,210023
南京邮电大学电子科学与工程学院,南京 210023;南京邮电大学理学院,南京 210023 |
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| 基金项目： | 国家自然科学基金(51372119)，南京邮电大学科研项目(NY217096;NY214014)，大学生创新创业训练计划 |
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| 摘 要： | 利用溶胶-凝胶法制备了BiFeO_3、Bi_(0.95)Sr_(0.05)FeO_3、BiFe_(0.95)Co_(0.05)O_3和Bi_(0.95)Sr_(0.05)Fe_(0.95)Co_(0.05)O_3样品,并对样品的结构、形态、元素含量、铁电性和铁磁性进行了研究。结果表明,共掺杂样品Bi_(0.95)Sr_(0.05)Fe_(0.95)Co_(0.05)O_3的晶体结构发生了变化,铁电性明显增强,但漏电流变大;Bi_(0.95)Sr_(0.05)FeO_3、BiFe_(0.95)Co_(0.05)O_3样品的磁性都有所增强,但Bi_(0.95)Sr_(0.05)Fe_(0.95)Co_(0.05)O_3样品的磁性并没有随着Sr和Co的共同掺杂而进一步提高,从氧空位浓度、Fe-O共价键结构的变化和晶体尺寸三个方面对产生这种现象的原因进行了分析。
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| 关 键 词： | 多铁性材料 铁电性 铁磁性 拉曼光谱 multiferroic material ferroelectric ferromagnetism Raman spectroscopy |
Property of Sr and Co Codoped Multiferroic Material BiFeO3 |
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| XIONG Jiangong,ZHANG Chuangwei,WANG Kang,KONG Lingyi,ZHAO Yifei,CHEN Long and LI Yongtao.Property of Sr and Co Codoped Multiferroic Material BiFeO3[J].Materials Review,2018,32(10):1582-1586. |
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| Authors: | XIONG Jiangong ZHANG Chuangwei WANG Kang KONG Lingyi ZHAO Yifei CHEN Long and LI Yongtao |
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| Affiliation: | College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023,College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023,College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023,School of Communication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023,School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023,School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023 and College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023;School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023 |
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| Abstract: | BiFeO3 ,Bi0.95 Sr0.05 FeO3 ,BiFe0.95 Co0.05 O3 and Bi0.95 Sr0.05 Fe0.95 Co0.05 O3 samples were prepared by sol-gel method and the structure,morphology,element content,ferroelectricity and ferromagnetism of the samples were investigated.The results manifested that the crystal structure of Bi0.95 Sr0.05 Fe0.95 Co0.05 O3 had been changed and the ferroelectricity enhanced dramatically,but the leakage current of it was also larger.Simultaneously,it demonstrated that the magnetic properties of Bi0.95 Sr0.05 FeO3 and BiFe0.95 Co0.05 O3 were increased more or less.But the magnetic properties of Bi0.95 Sr0.05 Fe0.95 Co0.05 O3 was constant with Sr and Co co-doped.The reason for this phenomenon were analyzed by comparing oxygen vacancy concentration,the difference between Fe-O co-valent bond structures and the different size of the crystals for all the samples. |
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| Keywords: | multiferroic material ferroelectric ferromagnetism Raman spectroscopy |
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