Magnetodielectric effect in (1 − x)(Ba0.88Ca0.12)(Ti0.88Zr0.12)O3 − xCoFe2O4
Magnetodielectric effect in (1 − x)(Ba0.88Ca0.12)(Ti0.88Zr0.12)O3 − xCoFe2O4
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(1‐‐‐‐x)(Ba0.88Ca0.12)(Ti0.88Zr0.12)O3‐‐‐xCoFe2O4 中的磁介电效应
DOI：
10.1016/j.jmmm.2017.12.107
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Ning Zhang
中科院分区：
文献类型：
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作者：
Pengfei Pan;Jin Tao;Fusheng Ma;Ning Zhang
磁介质材料以其独特的物理特性和潜在的应用前景引起了人们的广泛关注。本文采用溶胶-凝胶法制备了多晶（1 −x）（Ba0.88Ca0.12）（Ti0.88Zr0.12）O3−xCoFe2O4（x= 0.10,0.20,0.30,0.40）陶瓷。研究了复合材料的室温磁性和铁电行为。对于x= 0.40的复合材料，在1.5 T的磁场下，磁导比为5.37%,atf= 1 kHz。测量到的“蝶形迟滞”MD曲线显示出明显的介电异常。理论分析表明，所观察到的磁介电效应是磁电阻效应和磁电耦合的结果。
Magnetodielectric (MD) materials have attracted considerable attention due to their intriguing physics and potential future applications. In this work, polycrystalline (1 −x)(Ba0.88Ca0.12)(Ti0.88Zr0.12)O3−xCoFe2O4(x= 0.10, 0.20, 0.30, 0.40) ceramic have been prepared via sol-gel method. The room temperature magnetic and ferroelectric behaviors of the synthesized composites were investigated. For the composite withx= 0.40, a MD ratio of 5.37% was achieved under a magnetic field of 1.5 T atf= 1 kHz. The measured “butterfly hysteresis” MD curves exhibit an obvious dielectric anomaly. Theoretical analysis suggests that the observed magnetodielectric effect is attributed to the magnetoresistance effect and magnetoelectric coupling.