Ferroelectromagnetic pseudocubic BiFeO3-LaFeO3-PbFeO2.5: Leakage current, dielectric, and multiferroic properties at room temperature. Issue 1 (January 2020)

• Record Type: Journal Article
• Authors: Xue, Fei; Tian, Yahui; Jian, Gang; Li, Wang; Tang, Lu; Guo, Peng
• Is Part Of: Ceramics international. Volume 46:Issue 1(2020)
• Page Start: 930
• Page End: 936
• Publication Date: 2020-01
• Subjects: Ferroelectromagnetics -- Leakage current -- Dielectric -- Pseudo-cubic; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2019.09.053
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: The ternary solid solution 0.6BiFeO3 -0.1LaFeO3 -0.3PbFeO2.5 (0.6BFO-0.1LFO-0.3PFO) was studied to determine the origin of spontaneous magnetization and electrical properties for the development of single-phase ferroelectromagnetics. Rietveld refinement of the X-ray diffraction pattern of 0.6BFO-0.1LFO-0.3PFO ceramics reveals a pseudocubic structure. Investigation of the leakage current density revealed different conduction mechanisms at different electric fields. Dielectric loss as a function of frequency (log δ - f plot) was affected by the grain size and grain boundaries. The coexistence of ferromagnetism and ferroelectricity was observed; a pulsed remanent polarization of 0.4 μC/cm 2, remanent magnetization of 0.5 emu/g, and saturation magnetization of 3 emu/g were determined for 0.6BFO-0.1LFO-0.3PFO. A large magnetoelectric coupling effect of 120 mV/cm·Oe was observed.