Amin, N., Razaq, A., Rehman, A.U. et al. (14 more authors) (2021) Transport properties of Ce-doped Cd ferrites CdFe2−xCexO4. Journal of Superconductivity and Novel Magnetism, 34 (11). pp. 2945-2955. ISSN 1557-1939
Abstract
Cadmium ferrites belong to normal spinel ferrites, and they exhibit interesting electrical, magnetic, and optical properties. The pure and cerium-doped cadmium ferrites CdFe2−xCexO4 (x = 0.0, 0.125, 0.250, 0.375, 0.5) were synthesized by a chemical co-precipitating technique using sodium hydroxide as a co-precipitating agent. The structures and phase purity of fabricated nanomaterials were analyzed by X-ray diffraction (XRD). The crystallite size for all the prepared nanomaterials was in the range of 28–46 nm. The lattice constant and unit cell volume were found to decrease with the increasing concentration of Cerium, which was confirmed by the peak shift in the XRD pattern. The X-ray density for all nano ferrites increased with the enhancement of cerium composition. The resistivity of the nanomaterials has random behavior with the enhancement of cerium composition for a temperature, but the value of resistivity at x = 0.125 has the lowest value and at x = 0.375 has the highest value for almost all temperatures. For specific concentrations, a decreasing trend of resistivity of fabricated materials was found with an increment of temperature. The activation energies were also calculated, and it increased for x = 0.125 and then decreased for all the nanomaterials. For the confirmation of the M–O bonds, FTIR analysis of all the nano ferrites was also performed. The analysis shows a higher frequency absorption band in the range of 531.24–534.84 cm−1. This absorption band confirms that metal oxides are formed in all the synthesized nanoparticles.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2021 The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. This is an author-produced version of a paper subsequently published in Journal of Superconductivity and Novel Magnetism. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Spinel; Ferrites; Absorption band; Resistivity; Activation energies |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 24 Jan 2022 09:05 |
Last Modified: | 05 Oct 2022 00:14 |
Status: | Published |
Publisher: | Springer Nature |
Refereed: | Yes |
Identification Number: | 10.1007/s10948-021-06053-z |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:182848 |