Magnetoelectric properties of lead-free Li0.06K0.47Na0.47NbO3CoFe2O4 nanocomposite films fabricated by a one-step chemical process
✍ Scribed by Cheng, T. D. ;Wang, G. Y. ;Wang, Y. ;Tang, X. G. ;Chan, H. L. W.
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 382 KB
- Volume
- 208
- Category
- Article
- ISSN
- 0031-8965
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Lead‐free composite thin films composed of Li~0.06~K~0.47~Na~0.47~NbO~3~ and CoFe~2~O~4~ were prepared using a one‐step chemical method. By analysis using X‐ray diffraction, thermogravimetry (TG), and differential scanning calorimetry, it was found that the Li~0.06~K~0.47~Na~0.47~NbO~3~ and CoFe~2~O~4~ phases were crystallized at different stages of the thermal treatment, which resulted in the formation of a composite structure. The phase segregation was confirmed by observations on scanning electron microscopy and magnetic force microscopy. By electrical and magnetic measurements it was found that the composite showed a coupled magnetoelectric behavior at room temperature with a magnetoelectric coefficient of ∼185 mV/cm · Oe.