Influence of Cd2+ Ions Substitution on the Magnetic Properties of Ni-Cd Ferrites
| Authors | V.S. Bushkova |
| Affiliations | Vasyl Stefanyk Precarpathian National University, 57, Shevchenko St., 76025 Ivano-Frankivsk, Ukraine |
| Е-mail | bushkovavira@gmail.com |
| Issue | Volume 9, Year 2017, Number 5 |
| Dates | Received 03 July 2017; revised manuscript received 10 July 2017; published online 16 October 2017 |
| Citation | V.S. Bushkova, J. Nano- Electron. Phys. 9 No 5, 05029 (2017) |
| DOI | 10.21272/jnep.9(5).05029 |
| PACS Number(s) | 75.75. + a, 75.60. – d |
| Keywords | Ferrites (5) , Specific saturation magnetization, Magnetic moment, Initial permeability, Curie temperature (2) . |
| Annotation | The polycrystalline of Ni-Cd ferrites were prepared by the technology sol-gel with participation of auto-combustion and sintered at temperature 1573 K in air. Low field hysteresis measurement was carried out at room temperature at frequency of 200 Hz and at the field range 1600-16000 A/m. The increase of Cd2+ ions yields the increase of specific saturation magnetization σs and magnetic moment mexp up to x 0.3 then decrease thereafter. The Neel’s two sublattice model can be applied to the sample up to x 0.3. The composition dependence of the specific saturation magnetization and magnetic moment for 0.4 ≤ x ≤ 0.6 were explained on the basis of the existence of Yafet-Kittel angles on the B-site spins. The temperature variation of the initial permeability μi of these samples was carried out from 300 to 900 K. The initial permeability increases with increasing Cd content up to x 0.3 after that it decreases. It was found that Curie temperature Tc decreases from 831 to 697 K. |
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