Unveiling electronic structure and magnetic properties of AFe2O4 (A = Co, Ni, Zn, and Mg): Synergizing experimentation with DFT investigation

TitleUnveiling electronic structure and magnetic properties of AFe2O4 (A = Co, Ni, Zn, and Mg): Synergizing experimentation with DFT investigation
Publication TypeJournal Article
Year of Publication2024
AuthorsDhaka, S, Shukla, A, Garima,, Poonia, K, Kumar, S
JournalSolid State Communications
Volume382
Pagination115459
Date PublishedAPR
Type of ArticleArticle
ISSN0038-1098
KeywordsDensity 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.
DOI10.1016/j.ssc.2024.115459
Type of Journal (Indian or Foreign)

Foreign
Impact Factor (IF)

2.1
Divison category: 
Physical and Materials Chemistry
Database: 
Web of Science (WoS)

Add new comment