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- Title
A study of structural, ferroelectric, ferromagnetic, dielectric properties of NiFeO-BaTiO multiferroic composites.
- Authors
Liu, Yanqing; Wu, Yuhan; Li, Dan; Zhang, Yongjun; Zhang, Jing; Yang, Jinghai
- Abstract
The mixed spinel-perovskite multiferroic composites of xNiFeO-(1 − x)BaTiO (x = 0.1, 0.2, 0.3, 0.4, 0.5, 0.6) have been prepared by sol-gel method. The structure and morphology of the composites were examined by means of X-ray diffraction and transmission electron microscope. High-resolution transmission electron microscope image indicates a clear view of ferrite and ferroelectric phase. Moreover, we observed a fine interface between the two phases, where the coupling effect of ferrite and ferroelectric phase happened. The composites show excellent ferromagnetic and ferroelectric properties. The saturation magnetization (M) reaches to 24.139 emu/g for x = 0.6 at room temperature, the magnetization is about 2.37 emu/g for x = 0.6 when the temperature decreases to 90 k, and the polarization reaches to 3.75 μC/cm for x = 0.1. Frequency dependent variations of dielectric constant and loss tangent for xNiFeO-(1 − x)BaTiO were studied in detail.
- Subjects
MOLECULAR structure; FERROELECTRICITY; FERROMAGNETISM; DIELECTRICS; IRON oxides; MULTIFERROIC materials; METALLIC composites; TITANIUM oxides
- Publication
Journal of Materials Science: Materials in Electronics, 2013, Vol 24, Issue 6, p1900
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-012-1032-y