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논문 기본 정보

자료유형
학술저널
저자정보
M. N. Hossain (Bangladesh University of Engineering and Technology) M. A. Matin (Bangladesh University of Engineering and Technology) M. A. Islam (Dhaka University of Engineering and Technology) M. M. Rhaman (Ahsanullah University of Science and Technology) M. A. Hakim (Bangladesh University of Engineering and Technology) M. F. Islam (Bangladesh University of Engineering and Technology)
저널정보
한국전기전자재료학회 Transactions on Electrical and Electronic Materials Transactions on Electrical and Electronic Materials 제22권 제4호
발행연도
2021.8
수록면
543 - 549 (7page)
DOI
https://doi.org/10.1007/s42341-020-00264-2

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This report focuses on the investigation of multiferroic properties of 15% Gd and (5?15) % Cr co-doped Bismuth Ferrite (BFO) nanoparticles prepared by sol?gel method. The synthesized pure BFO has shown to be R3c rhombohedral crystal structure which partially transforms to Pnma orthorhombic crystal structure with increasing Cr dopant in co-doped samples. The crystallite size was found to vary from 68 to 22 nm depending on doping level. SEM images exhibited uniform nanoparticles and the average size of particles was shown to vary from 263 to 114 nm which is comparatively higher than that obtained from XRD results due to agglomeration eff ects. Ferroelectric tests exhibited a signifi cant reduction in polarization in doped BFO under an applied fi eld of ± 15 kV/cm. In contrast, the magnetic measurement showed a substantial improvement in ferromagnetic properties of the synthesized samples compared to un-doped one. A prominent exchange anisotropy eff ect was also observed in all the samples at room temperature. In addition, co-doped BFO samples demonstrated a signifi cant reduction in band gap energy from 1.88 to 1.68 eV.

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