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Low-field giant magneto-ionic response in polymer-based nanocomposites†
Nanoscale ( IF 5.8 ) Pub Date : 2018-07-20 00:00:00 , DOI: 10.1039/c8nr03259a
Daniela M. Correia 1, 2, 3, 4, 5 , Pedro Martins 4, 6, 7, 8 , Mohammad Tariq 9, 10, 11, 12, 13 , José M. S. S. Esperança 9, 10, 11, 12, 13 , Senentxu Lanceros-Méndez 5, 14, 15, 16, 17
Affiliation  

The future of magnetoelectric (ME) materials is closely linked to the optimization of the ME response on nanocomposites or to the introduction of new effects to achieve higher ME performance from low magnetic fields. Here, we report a P(VDF-TrFE)/[C4mim][FeCl4] nanocomposite with a magneto-ionic response that produces giant magnetoelectric coefficients up to ≈10 V cm−1 Oe−1. This response comprises a magnetically triggered ionic/charge movement within the porous structure of the polymer, being this a novel phenomenon never experimentally observed or explored in magnetoelectric composites. This work successfully demonstrates the concept of exploring magnetic ionic liquids, such as [C4mim][FeCl4], in polymer-based magnetoelectric nanocomposites, suitable for low-field magnetic sensing devices. Such nanocomposites have remarkable potential for applications, not only because they exhibit a high ME response with scalable production and with good reproducibility but also because this coupling between magnetic order and electric order via ionic effects can lead to additional novel effects.

中文翻译:

聚合物基纳米复合材料的低场巨磁离子响应

磁电(ME)材料的未来与纳米复合材料上的ME响应的优化或引入新的效应以从低磁场中获得更高的ME性能密切相关。在这里,我们报告了一种具有磁离子响应的P(VDF-TrFE)/ [C 4 mim] [FeCl 4 ]纳米复合材料,该复合材料可产生高达≈10V cm -1 Oe -1的巨大磁电系数。该响应包括在聚合物的多孔结构内的磁性触发的离子/电荷运动,这是从未在磁电复合材料中进行实验观察或探索的新现象。这项工作成功地演示了探索磁性离子液体,例如[C 4 mim] [FeCl 4],在聚合物基磁电纳米复合材料中,适用于低场磁感测设备。这样的纳米复合材料具有巨大的应用潜力,不仅因为它们显示出高的ME响应能力,可扩展的生产能力和良好的可重复性,而且还因为通过离子效应在磁有序和电有序之间的这种耦合会导致其他新颖的效应。
更新日期:2018-07-20
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