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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Multiferroic properties of (1-x)[0.94Bi(0.5)Na(0.5)TiO(3)-0.06BaTiO(3)]-xCoFe(2)O(4) ceramics
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Multiferroic properties of (1-x)[0.94Bi(0.5)Na(0.5)TiO(3)-0.06BaTiO(3)]-xCoFe(2)O(4) ceramics

机译：（1-x）[0.94Bi（0.5）Na（0.5）TiO（3）-0.06BaTiO（3）]-xCoFe（2）O（4）陶瓷的多铁性

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摘要

Multiferroic composite ceramics of (1-x)[0.94Bi(0.5)Na(0.5)TiO(3)-0.06BaTiO(3)]-xCoFe(2)O(4) (BBNTO-CFOx), x = 0.1, 0.2, 0.3, 0.4, 0.5, have been prepared and their structure, magnetoelectric (ME) effect, magnetic and ferroelectric properties have been investigated. x-ray diffraction and scanning electron microscopy show that the ceramics consist of separated perovskite BBNTO and spinel CFO. The ME effect is revealed by measuring the magnetic hysteresis loops of the same sample before and after electric poling. The magnetization increases gradually with increasing CFO content. Further electric measurements reveal that BBNTO-CFO0.30 has the largest polarization with a remanent polarization of 60.9 mu C cm(-2), which is even larger than that of pure BBNTO. The enhanced ferroelectricity might be ascribed to the ME effect. Our results may be helpful for developing new lead-free multiferroic composites with improved properties.
机译：（1-x）[0.94Bi（0.5）Na（0.5）TiO（3）-0.06BaTiO（3）]-xCoFe（2）O（4）（BBNTO-CFOx），x = 0.1，0.2的多铁复合陶瓷分别制备了0.3、0.4、0.5，并研究了它们的结构，磁电（ME）效应，磁和铁电性能。 X射线衍射和扫描电子显微镜表明，陶瓷由分离的钙钛矿BBNTO和尖晶石CFO组成。通过测量电极化前后相同样品的磁滞回线，可以揭示出ME效应。磁化强度随着CFO含量的增加而逐渐增加。进一步的电测量表明，BBNTO-CFO0.30具有最大的极化，剩余极化为60.9μC cm（-2），甚至比纯BBNTO大。铁电性增强可能归因于ME效应。我们的结果可能有助于开发性能改善的新型无铅多铁复合材料。

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