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首页> 外文期刊>Advanced Functional Materials >Multiferroic Polymer Laminate Composites Exhibiting High Magnetoelectric Response Induced by Hydrogen-Bonding Interactions
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Multiferroic Polymer Laminate Composites Exhibiting High Magnetoelectric Response Induced by Hydrogen-Bonding Interactions

机译：表现出氢键相互作用引起的高磁电响应的多铁聚合物层压复合材料

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摘要

The coupling of the magnetic, electric, and elastic properties in multifer-roics creates new collective phenomena and enables next-generation device paradigms. In this work, the hydrogen bonding interaction between hydrate salts and ferroelectric polymers is exploited in the development of high-performance magnetoelectric (ME) polymer laminate composites. The microstructures and crystallite structures of the Al(NO_3)_3·9H_2O doped poly(vinylidenefluoride-co-hexafluoropropylene), P(VDF-HFP), are carefully studied. The effect of hydrogen bonding interaction on the polarization ordering of the ferroelectric polymers is investigated by 2D wide-angle X-ray diffraction, polarized Fourier transform infrared spectra, and dielectric spectra at varied frequencies and temperatures. It is found that hydrogen bond not only promotes the formation of the polar crystallite phase but also improves the polarization ordering in the ferroelectric polymer, which subsequently increases the remnant polarization of the polymers as verified in the polarization-electric field loop measurements. These entail marked improvement in the ME voltage coefficients (_ME~-) of the resulting polymer laminate composites based on ferromagnetic Metglas relative to analogous composites. The composite exhibits a state-of-the-art _ME~- value of 20 V cm~(-1) Oe under a dc magnetic field of ≈4 Oe and a colossal _ME~- of 320 V cm~(-1) Oe at a frequency of 68 kHz.
机译：多铁心中的磁，电和弹性属性的耦合产生了新的集体现象，并启用了下一代设备范例。在这项工作中，水合物盐和铁电聚合物之间的氢键相互作用被用于开发高性能磁电（ME）聚合物层压复合材料。仔细研究了Al（NO_3）_3·9H_2O掺杂的聚偏二氟乙烯-共六氟丙烯P（VDF-HFP）的微观结构和微晶结构。通过二维广角X射线衍射，极化傅立叶变换红外光谱以及在不同频率和温度下的介电谱，研究了氢键相互作用对铁电聚合物极化顺序的影响。发现氢键不仅促进极性微晶相的形成，而且改善铁电聚合物中的极化有序性，这随后增加了聚合物的残余极化，如在极化电场回路测量中所证实的。这些导致相对于类似复合物，基于铁磁Metglas的所得聚合物层压复合物的ME电压系数（_ME--）显着改善。该复合材料在≈4Oe的直流磁场下显示出最先进的_ME〜-值为20 V cm〜（-1）Oe和巨大的_ME〜-为320 V cm〜（-1）Oe以68 kHz的频率。

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  • 来源
    《Advanced Functional Materials》 |2014年第8期|1067-1073|共7页
  • 作者

    Jiezhu Jin; Fang Zhao; Kuo Han; M. A. Haque; Lijie Dong; Qing Wang;

  • 作者单位

    Department of Materials Science and Engineering The Pennsylvania State University University Park, PA, 16802, USA;

    Materials Research Institute The Pennsylvania State University University Park, PA, 16802, USA;

    Department of Materials Science and Engineering The Pennsylvania State University University Park, PA, 16802, USA;

    Department of Mechanical and Nuclear Engineering The Pennsylvania State University University Park, PA, 16802, USA,Materials Research Institute The Pennsylvania State University University Park, PA, 16802, USA;

    State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan, 430070, China;

    Department of Materials Science and Engineering The Pennsylvania State University University Park, PA, 16802, USA,Materials Research Institute The Pennsylvania State University University Park, PA, 16802, USA;

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