首页> 美国卫生研究院文献>Scientific Reports >Structure Evolution and Multiferroic Properties in Cobalt Doped Bi4NdTi3Fe1-xCoxO15-Bi3NdTi2Fe1-xCoxO12-δ Intergrowth Aurivillius Compounds
【2h】

Structure Evolution and Multiferroic Properties in Cobalt Doped Bi4NdTi3Fe1-xCoxO15-Bi3NdTi2Fe1-xCoxO12-δ Intergrowth Aurivillius Compounds

机译:钴掺杂的Bi4NdTi3Fe1-xCoxO15-Bi3NdTi2Fe1-xCoxO12-δ共生共生Aurivillius化合物的结构演化和多铁性

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Here, we report the structure evolution, magnetic and ferroelectric properties in Co-doped 4- and 3-layered intergrowth Aurivillius compounds Bi4NdTi3Fe1-xCoxO15-Bi3NdTi2Fe1-xCoxO12-δ. The compounds suffer a structure evolution from the parent 4-layered phase (Bi4NdTi3FeO15) to 3-layered phase (Bi3NdTi2CoO12-δ) with increasing cobalt doping level from 0 to 1. Meanwhile the remanent magnetization and polarization show opposite variation tendencies against the doping level, and the sample with x = 0.3 has the largest remanent magnetization and the smallest polarization. It is believed that the Co concentration dependent magnetic properties are related to the population of the Fe3+ -O-Co3+ bonds, while the suppressed ferroelectric polarization is due to the enhanced leakage current caused by the increasing Co concentration. Furthermore, the samples (x = 0.1–0.7) with ferromagnetism show magnetoelectric coupling effects at room temperature. The results indicate that it is an effective method to create new multiferroic materials through modifying natural superlattices.
机译:在这里,我们报道了共掺杂的4层和3层共生Aurivillius化合物Bi4NdTi3Fe1-xCoxO15-Bi3NdTi2Fe1-xCoxO12-δ的结构演化,磁和铁电性能。化合物的结构从母体4层相(Bi4NdTi3FeO15)演变为3层相(Bi3NdTi2CoO12-δ),钴的掺杂水平从0增加到1。同时,剩余磁化强度和极化强度相对于掺杂水平显示出相反的变化趋势,x = 0.3的样品的剩余磁化强度最大,极化强度最小。可以认为,Co浓度依赖性的磁性与Fe 3 + -O-Co 3 + 键的数量有关,而抑制的铁电极化是由于Co浓度增加导致泄漏电流增加。此外,具有铁磁性的样品(x = 0.1-0.7)在室温下表现出磁电耦合效应。结果表明,通过修饰天然超晶格来创建新的多铁性材料是一种有效的方法。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号