Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/10471
Title: Ho and Ti co-doped BiFeO3 multiferroic ceramics with enhanced magnetization and ultrahigh electrical resistivity
Authors: Gu, YH
Liu, Y
Yao, C
Ma, YW
Wang, Y 
Chan, HLW 
Chen, WP
Keywords: Magnetism
Multiferroics
Resistivity
Issue Date: 2014
Publisher: Chinese Physical Society
Source: Chinese physics B, 2014, v. 23, no. 3, 037501 How to cite?
Journal: Chinese physics B 
Abstract: Bi0.9Ho0.1Fe0.95O3 and Bi 0.9Ho0.1Fe0.9Ti0.05O3 ceramics were prepared and compared to reveal the effects of Ho and Ti codoping in BiFeO3. X-ray diffraction indicated that both ceramics had a high rhombohedral perovskite phase content, and microstructural analyses showed that the grains of the Bi0.9Ho0.1Fe0.9Ti 0.05O3 ceramics were much smaller than those of Bi 0.9Ho0.1Fe0.95O3. An electrical resistivity of more than 1 × 1014 Ω·cm at room temperature, and a magnetic hysteresis loop with a remnant magnetization 2M r of ∼ 0.485 emu/g were obtained for Bi0.9Ho 0.1Fe0.9T0.05O3; both were much higher than those of Bi0.9Ho0.1Fe0.95O 3. Changes in the defect subsystem of BiFeO3 induced by Fe-deficiency and (Ho,Ti) codoping are proposed as being responsible for the improvement in the properties.
URI: http://hdl.handle.net/10397/10471
ISSN: 1674-1056
DOI: 10.1088/1674-1056/23/3/037501
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