Effect of Cr doping on ferroelectric and magnetic properties of Bi0.8Ba0.2FeO3. Issue 7 (August 2015)

• Record Type: Journal Article
• Authors: Wei, Jizhou; Zhang, Ming; Deng, Haoliang; Chu, Shangjie; Du, Minyong; Yan, Hui
• Is Part Of: Ceramics international. Volume 41:Issue 7(2015)
• Page Start: 8665
• Page End: 8669
• Publication Date: 2015-08
• Subjects: Multiferroic -- Dielectric -- Magnetoelectric coupling -- BiFeO3; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2015.03.079
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Multiferroic ceramics Bi0.8 Ba0.2 Fe1− x Cr x O3 ( x =0, 0.05 and 0.1) were synthesized by using the conventional solid state reaction method. The pure phase with rhombohedral structure was confirmed by the X-ray diffraction measurements for all samples. It was shown that the magnetic and the ferroelectric properties were simultaneously improved, and the maximum values of the remnant magnetization (2 Mr ) and the remnant polarization (2 Pr ) at room temperature for all samples are around 1 emu/g and 1.9 μC/cm 2, respectively. Furthermore, the leakage current density, the low frequency dispersion in the dielectric constant and the dielectric loss decreased with increasing the Cr concentration from x =0 to 0.1. A remarkable change in the P–E loop was observed whether a bias dc magnetic field was applied or not, approving the existence of the magnetoelectric coupling indirectly therein.