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Structural, magnetic and electric properties of Nd and Ni co-doped BiFeO3 materials

1 Department of Physics, Hanoi University of Mining and Geology, Duc Thang Ward, North Tuliem District, Hanoi, Vietnam
2 Center for Nano science and Technology, Physics Faculty, Hanoi National University of Education, 136 Xuan Thuy Road, Hanoi, Vietnam

Topical Section: Ceramics

Multiferroic Bi1−xNdxFe0.975Ni0.025O3 (x = 0.00, 0.05, 0.10, 0.125, and 0.15) (BNFNO) and BiFeO3 (BFO) materials were synthesized by a sol-gel method. Crystal structure, ferromagnetic and ferroelectric properties of the as-synthesized materials were investigated. Results showed that Nd3+ and Ni2+ co-doping affected to the electrical leakage, enhanced ferroelectric polarization and magnetization of BiFeO3. Co-doped sample with 12.5 mol% of Nd3+ and 2.5 mol% of Ni2+ exhibited an enhancement in both ferromagnetism and ferroelectric properties up to MS ~ 0.528 emu/g and PS ~ 18.35 μC/cm2 with applied electric field at 5 kV/cm, respectively. The origins of ferromagnetism and ferroelectricity enhancement were discussed in the paper.
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Keywords multiferroic; ferromagnetic; ferroelectric; polarization

Citation: Dao Viet Thang, Le Thi Mai Oanh, Nguyen Cao Khang, Nguyen Manh Hung, Do Danh Bich, Du Thi Xuan Thao, Nguyen Van Minh. Structural, magnetic and electric properties of Nd and Ni co-doped BiFeO3 materials. AIMS Materials Science, 2017, 4(4): 982-990. doi: 10.3934/matersci.2017.4.982


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