Effects of morphotropic phase boundary on the electric behavior of Er/Ti co-doped BiFeO3 ceramics. (1st January 2019)

• Record Type: Journal Article
• Authors: Zhang, Liwei; Ke, Hua; Zhang, Hongjun; Li, Fangzhe; Zhao, Jinggeng; Luo, Huijiadai; Cao, Lu; Zeng, Gang; Li, Xiening; Wang, Wen; Jia, Dechang; Zhou, Yu
• Is Part Of: Scripta materialia. Number 158(2019)
• Page Start: 71
• Page End: 76
• Publication Date: 2019-01-01
• Subjects: MPB -- Bi(1-x)ErxFe0.97Ti0.03O3 -- Phase constitution -- Electric behavior -- Magnetodielectric; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.08.030
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Morphotropic phase boundaries (MPB) consisting of rhombohedral and orthorhombic phases formed within the range of 0.1 ≤ x ≤ 0.15 in Bi1- x Er x Fe0.97 Ti0.03 O3 ceramics. Orthorhombic phase transition was verified by the appearance of a new mode at 310 cm −1 in Raman spectra. Bridging phases as intermedia phases of MPB were rare in Bi1- x Er x Fe0.97 Ti0.03 O3 . Polarization and permittivity improved at MPB. Moreover, impedance spectroscopy revealed additional arcs with a distinct small polaron conduction mechanism. Er 3+ ions enhanced magnetic properties and induced a permittivity change at Neel temperature. The magnetodielectric effect resulted in a permittivity change rate of ~1% at 10000 Oe. Graphical abstract: Unlabelled Image