Impact of rare earth Dy+3 cations on the various parameters of nanocrystalline nickel spinel ferrite
Funding Sponsor
American University in Cairo
Author's Department
Chemistry Department
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https://doi.org/10.1016/j.jmrt.2020.03.057
Document Type
Research Article
Publication Title
Journal of Materials Research and Technology
Publication Date
1-1-2020
doi
10.1016/j.jmrt.2020.03.057
Abstract
© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). In this work, nanocrystalline NiDyxFe2-xO4 ferrites (0.0 ≤ x ≤ 0.1) were synthesized via co-precipitation route. The impact of Dy+3 substitution on the various properties has been investigated. Structural, electrical, spectral and magnetic parameters were measured by XRD (X-ray diffraction), I-V (current-voltage), FTIR (Fourier transform infrared spectroscopy) and VSM (vibrating sample magnetometer) respectively. Morphological analysis was done by FE-SEM (Field emission scanning electron microscope). The formation of a single-phase FCC cubic spinel structure was confirmed by XRD patterns. With the help of XRD data, bond lengths and ionic radii were also calculated. FTIR spectra showed the formation of two typical frequency bands (Ï…1 and Ï…2) which represent metal-oxygen (M-O) vibrations at octahedral (B) and tetrahedral (A) sites. EDX spectrographs confirmed elemental composition. The M H curves demonstrated a decrease in saturation magnetization (Ms) and Bohr magneton (nB). The coercivity (Hc) showed a non -linear behaviour while anisotropy constant first increased and then decreased with Dy-substitution. NiDy0.025Fe1.975O4 showed maximum coercivity (102.06 Oe).
First Page
5313
Last Page
5325
Recommended Citation
APA Citation
Anwar, A.
Zulfiqar, S.
Yousuf, M.
Ragab, S.
...
(2020). Impact of rare earth Dy+3 cations on the various parameters of nanocrystalline nickel spinel ferrite. Journal of Materials Research and Technology, 9(3), 5313–5325.
10.1016/j.jmrt.2020.03.057
https://fount.aucegypt.edu/faculty_journal_articles/909
MLA Citation
Anwar, Asima, et al.
"Impact of rare earth Dy+3 cations on the various parameters of nanocrystalline nickel spinel ferrite." Journal of Materials Research and Technology, vol. 9,no. 3, 2020, pp. 5313–5325.
https://fount.aucegypt.edu/faculty_journal_articles/909