Sr、Co共掺多铁性材料BiFeO3的性能

doi:10.11896/j.issn.1005-023X.2018.10.002

《材料导报》期刊社

2018, Vol. 32

Issue (10): 1582-1586 https://doi.org/10.11896/j.issn.1005-023X.2018.10.002

材料研究

Sr、Co共掺多铁性材料BiFeO₃的性能

熊建功¹,张创伟¹,王康¹,孔令仪²,赵弋菲³,陈龙³,李永涛^1,3

1 南京邮电大学电子科学与工程学院,南京 210023;
2 南京邮电大学通信与信息工程学院,南京 210023;
3 南京邮电大学理学院,南京 210023

Property of Sr and Co Codoped Multiferroic Material BiFeO₃

XIONG Jiangong¹, ZHANG Chuangwei¹, WANG Kang¹, KONG Lingyi²,ZHAO Yifei³, CHEN Long³, LI Yongtao^1,3

1 College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023;
2 School of Communication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023;
3 School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023

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摘要利用溶胶-凝胶法制备了BiFeO₃、Bi_0.95Sr_0.05FeO₃、BiFe_0.95Co_0.05O₃和Bi_0.95Sr_0.05Fe_0.95Co_0.05O₃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_0.95Sr_0.05Fe_0.95Co_0.05O₃的晶体结构发生了变化,铁电性明显增强,但漏电流变大;Bi_0.95Sr_0.05FeO₃、BiFe_0.95Co_0.05O₃样品的磁性都有所增强,但Bi_0.95Sr_0.05Fe_0.95Co_0.05O₃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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	熊建功
	张创伟
	王康
	孔令仪
	赵弋菲
	陈龙
	李永涛

关键词: 多铁性材料铁电性铁磁性拉曼光谱

Abstract: BiFeO₃, Bi_0.95Sr_0.05FeO₃, BiFe_0.95Co_0.05O₃and Bi_0.95Sr_0.05Fe_0.95Co_0.05O₃samples 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 Bi_0.95Sr_0.05Fe_0.95Co_0.05O₃ 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 Bi_0.95Sr_0.05FeO₃ and BiFe_0.95Co_0.05O₃ were increased more or less. But the magnetic properties of Bi_0.95Sr_0.05Fe_0.95Co_0.05O₃was constant with Sr and Co codoped. The reason for this phenomenon were analyzed by comparing oxygen vacancy concentration, the difference between Fe-O covalent bond structures and the different size of the crystals for all the samples.

Key words: multiferroic material ferroelectric ferromagnetism Raman spectroscopy

出版日期: 2018-05-25 发布日期: 2018-07-06

ZTFLH:

O469

基金资助: 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

作者简介: 熊建功:男,1991年生,硕士,主要从事材料物理特性研究 E-mail:15082906530@163.com 李永涛:通信作者,男,1977年生,博士,副教授,主要从事多铁材料微结构及磁性研究 E-mail:liyt@njupt.edu.cn

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》期刊社, 2018, 32(10): 1582-1586.
XIONG Jiangong, ZHANG Chuangwei, WANG Kang, KONG Lingyi,ZHAO Yifei, CHEN Long, LI Yongtao. Property of Sr and Co Codoped Multiferroic Material BiFeO₃. Materials Reports, 2018, 32(10): 1582-1586.

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http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2018.10.002 或 http://www.mater-rep.com/CN/Y2018/V32/I10/1582

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