The effect of magnetic nanoparticles on the morphology, ferroelectric, and magnetoelectric behaviors of CFO/P(VDF-TrFE) 0-3 nanocomposites

被引：95

作者：

Zhang, J. X. ^{[1
]}

Dai, J. Y. ^{[1
]}

So, L. C. ^{[1
]}

Sun, C. L. ^{[1
]}

Lo, C. Y. ^{[1
]}

Or, S. W. ^{[1
]}

Chan, H. L. W. ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 05期

关键词：

cobalt compounds; ferroelectric materials; filled polymers; magnetic particles; magnetoelectric effects; multiferroics; nanocomposites; nanoparticles; polymer blends; thin films;

D O I：

10.1063/1.3078111

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Multiferroic nanocomposite films composed of P(VDF-TrFE) copolymer and CoFe2O4 (CFO) nanoparticles have been prepared by a modified polymeric processing. Structural characterizations reveal that CFO nanoparticles with 80-100 nm diameters are well distributed in the P(VDF-TrFE) matrix. The crystalline and microstructure of P(VDF-TrFE) are strongly dependent on the volume fraction of CFO nanoparticles, which are further analyzed by Raman spectra. Consequently, the ferroelectric and magnetoelectric responses are strongly influenced by the concentration of CFO nanoparticles. A significant magnetoelectric coupling effect of around 40 mV/cm Oe is obtained from the nanocomposites. A relatively simple model has been adopted to calculate the magnetoelectric coefficient, which is also in agreement with the experimental results.

引用

页数：6

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