article · Nanoscale Advances
Nd-doped CoFe<sub>2</sub>O<sub>4</sub> spinel ferrites were synthesized <i>via</i> the sol-gel method, confirming a cubic spinel structure. Increasing Nd concentration expanded the lattice parameter (8.3900-8.4231 Å) and unit cell volume while reducing grain size. FT-IR analysis validated the spinel phase. Nd doping enhanced the dielectric constant by affecting space charge polarization and charge hopping, with conductivity following a Debye-type relaxation mechanism. Cole-Cole plots indicated grain boundary effects and polaron hopping conduction. Magnetic properties improved with Nd<sup>3+</sup> content, with <i>M</i> <sub>s</sub> and <i>H</i> <sub>c</sub> reaching 5.621 emu g<sup>-1</sup> and 143.43 Oe at 4% doping. A transition from an antiferromagnetic to a ferromagnetic state was observed, with a high Curie temperature (<i>T</i> <sub>m</sub>) of 292 °C, confirming a stable ferromagnetic phase. These findings highlight Nd-doped CoFe<sub>2</sub>O<sub>4</sub> as a promising candidate for permanent magnet applications.
This page summarises published work. The authoritative version sits with the publisher.
DOI: 10.1039/d5na00197h
Is something wrong with this record? Report it or request removal.
Discussion
Have you built on this work, tried to replicate it, or seen it applied in practice? Share what you know. Verified researchers and MARATTO™ domain experts can open a discussion, and any member can reply. Contributions are reviewed before they appear.
No discussion yet. Open the first thread.
New to MARATTO™? Create a free account.
