摘要
采用固相反应法制备了(1-x)BaTiO_(3)-xDyFeO_(3)二元体系钙钛矿结构固溶体陶瓷,研究了其磁性性能随组分和温度的演变规律,分析了相组成对磁学特性的影响。结果表明:随着x的增大,磁性元素浓度增加导致高场下磁化强度以及动态磁化率大体呈上升趋势;分别对静态和动态磁化率随温度变化曲线进行拟合,发现均可满足Curie-Weiss定律,但两者拟合参数显示出明显差异。在中间组分范围出现少量磁性的焦绿石相以及类DyFeO_(3)相,这些相在低磁场下对磁性性能影响显著,导致对应磁学参数具有明显的波动。
The perovskite solid solution ceramics,(1-x)BaTiO_(3)-xDyFeO_(3),were synthesized by a solid-state reaction method.The magnetic properties of different compositions at various temperatures were investigated.The effect of phase content on the magnetic behavior was analyzed.The results show that the magnetization and susceptibility in an applied field increase with increasing x value due to the increasing concentration of magnetic elements.The temperature-dependent static and dynamic susceptibilities follow the Curie-Weiss law,but the fitting parameters are different.
作者
胡昊
庄建
HU Hao;ZHUANG Jian(School of Electronic Science and Engineering,Electronic Materials Research Laboratory,Key Laboratory of the Ministry of Education,Institute of Ferroic Materials and Integrated Devices,Xi′an Jiao Tong University,Xi′an 710049,China)
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2022年第9期2374-2379,共6页
Journal of The Chinese Ceramic Society
基金
国家自然科学基金(12174299)
肇庆市第二批西江人才创业创新团队项目(捷成)。
关键词
钛酸钡-铁酸镝固溶体
磁性性能
单相多铁性材料
barium titanate-dysprosium ferritate solid solution
magnetic properties
single-phase multiferroics
作者简介
第一作者:胡昊(1998-),男,硕士研究生;通信作者:庄建(1988-),博士,副教授。
