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0-3 type magnetoelectric 0.94Na0.5Bi0.5TiO3-0.06BaTiO3:CoFe2O4 composite ceramics with a deferred thermal depolarization
Journal of the European Ceramic Society ( IF 5.8 ) Pub Date : 2017-11-04 , DOI: 10.1016/j.jeurceramsoc.2017.11.004
Anmeng Deng , Laihui Luo , Weiping Li , Feifei Wang , Yaojin Wang

Developing Na0.5Bi0.5TiO3-based magnetoelectric (ME) coupling composites with higher depolarization temperature is highly valuable for the environment-friendly smart electronic devices. We have developed a new kind of 0-3 type 0.94Na0.5Bi0.5TiO3-0.06BaTiO3:xCoFe2O4 (NBTBT:xCFO, x = 0, 0.1, 0.2, 0.3) composite ceramics with a deferred depolarization temperature, together with an additional strong ME coupling of 9.2 mV/cm·Oe for the NBTBT:0.2CFO. The basic structure, ferroelectric/ferromagnetic properties, and the depolarization temperature of the NBTBT:xCFO composite ceramics were investigated. It was found that an enhancement of depolarization temperature (>25 °C) was obtained in these 0-3 type composites relative to the pure NBTBT ones (115 °C vs 90 °C). The mechanism of the enhanced depolarization temperature of the composites is discussed. The present results demonstrate that NBTBT:xCFO composites have great potential for ME devices.



中文翻译:

延迟热去极化的0-3型磁电0.94Na 0.5 Bi 0.5 TiO 3 -0.06BaTiO 3:CoFe 2 O 4复合陶瓷

开发具有更高去极化温度的Na 0.5 Bi 0.5 TiO 3基磁电(ME)耦合复合材料对于环保型智能电子设备非常有价值。我们开发了一种新型的0-3型0.94Na 0.5 Bi 0.5 TiO 3 -0.06BaTiO 3x CoFe 2 O 4(NBTBT:x CFO,x = 0、0.1、0.2、0.3)复合陶瓷,具有延迟的去极化温度,以及针对NBTBT:0.2CFO的9.2 mV / cm·Oe的附加强ME耦合。研究了NBTBT:x CFO复合陶瓷的基本结构,铁电/铁磁性能以及去极化温度。已发现,相对于纯NBTBT复合材料(115°C vs 90°C),这些0-3型复合材料的去极化温度提高了(> 25 °C)。讨论了复合材料提高去极化温度的机理。目前的结果表明,NBTBT:x CFO复合材料对于ME器件具有巨大的潜力。

更新日期:2017-11-04
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