| Autor: |
Khan, Saira, Ullah, Saeed, Altuijri, Reem, El Maati, Lamia Abu |
| Předmět: |
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| Zdroj: |
JOM: The Journal of The Minerals, Metals & Materials Society (TMS); Nov2023, Vol. 75 Issue 11, p4887-4893, 7p |
| Abstrakt: |
To synthesize SrSmxFe2−xO4 (0.0 ≤ x ≤ 0.10) nanomaterials, we employed a sol–gel route of auto-ignitions and employed citric acid (C6H8O7) as the fuel precursor. Our objective was to study how variations in samarium concentration affected the electrical, magnetic, and structural characteristics of SrFe2O4 ferrite samples, including the effect of particle size on magnetic behaviour. At low Sm3+ concentrations, our x-ray diffraction investigation indicated a single-phase pure crystalline structure, with no impurity peaks observed at higher Sm3+ concentrations. As Sm3+ concentration increased, the lattice parameter as well as crystallite size increased. Sm3+ ions at octahedral positions interrupted Fe3+ valence alternation, resulting in a reduction in dielectric permittivity. We measured DC resistivity and Curie temperature using two probes, finding that DC electrical resistivity behaved like a semiconductor as temperature increased. We used a vibrating sample magnetometer to examine magnetic properties at room temperature, finding that increasing Sm3+ concentration led to higher saturation magnetization and coercivity. The low dielectric parameters of the prepared samples suggest potential for high-frequency applications. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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