Unveiling electronic structure and magnetic properties of AFe2O4 (A = Co, Ni, Zn, and Mg): Synergizing experimentation with DFT investigation
| Title | Unveiling electronic structure and magnetic properties of AFe2O4 (A = Co, Ni, Zn, and Mg): Synergizing experimentation with DFT investigation |
| Publication Type | Journal Article |
| Year of Publication | 2024 |
| Authors | Dhaka, S, Shukla, A, Garima,, Poonia, K, Kumar, S |
| Journal | Solid State Communications |
| Volume | 382 |
| Pagination | 115459 |
| Date Published | APR |
| Type of Article | Article |
| ISSN | 0038-1098 |
| Keywords | Density functional theory, Ferrites, Magnetic materials, X-ray diffraction |
| Abstract | This study presents the synthesis of nano-crystalline spinel ferrites AFe2O4 (A = Co2+, Ni+2, Zn+2, and Mg+2), through the sol-gel method, yielding crystallite sizes ranging from 12 to 28 nm. The variation in IR and Raman spectra due to M-O-M bonding supports the variation in lattice parameters. The magnetization measurements revealed that CoFe2O4 has a high saturation magnetization of -55 emu/g and coercivity of -1350 Oe, while ZnFe2O4 exhibited saturation magnetization value of -8 emu/g and coercivity of -16 Oe. In addition, the electronic structure calculated using DFT, which corroborated the antiparallel alignment of Fe ions in the tetrahedral and octahedral sites, validating the measured magnetic moments. Notably, the CoFe2O4 ferrite exhibited a higher squareness ratio than other ferrites, signifying its suitability as a magnetic material for audiovideo recording. |
| DOI | 10.1016/j.ssc.2024.115459 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 2.1 |