A-site Doping Effect of Multiferroic BiFeO3 Ceramics

Authors :: Taekyung Lim
Yunju La
Keun-Hyeok Yang
Sang Yoon Park
Ok Sung Jeon
Young Joon Yoo
Source :: Journal of the Korean Physical Society. 77:1021-1025
Publication Year :: 2020
Publisher :: Korean Physical Society, 2020.
Abstract: The structural, magnetic and ferroelectric properties of polycrystalline A-site (A = Ho, Pr and Ce of 10%) doped BiFeO3, which were prepared by the solid-state and rapid sintering methods, have been investigated. The powder X-ray diffraction pattern reveals that all the samples show rhombohedral perovskite structure R3c. The Ho-doped BiFeO3 shows that the magnetic property is slightly increased due to compressive lattice distortion and Ho3+ ion doping effect. For the Pr and Ce doped BiFeO3, the remnant polarization and coercive field increased because Pr3+ and Ce3+ ions substitution suppressed oxygen vacancies.