| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Bhanu, M.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (1/1 displayed)
Places of action
| Organizations | Location | People |
|---|
article
Impact of Ho3+ Substitution on Structural, Morphological, Optical, Electrical, Thermoelectrical and Magnetic Properties of MgCuHoxFe2-xO4 (0 < x < 0.030) System
Abstract
<jats:p>A series of rare earth (Ho3+) doped magnesium-copper nanoferrites with the general chemical compositions of Mg0.5Cu0.5HoxFe2-xO4 (where x = 0.000, 0.005, 0.010, 0.015, 0.020, 0.025 and 0.030) was fabricated by citrate sol-gel auto-combustion technique. The fabricated materials were investigated through powder XRD, FESEM, EDX, HRTEM, FTIR, UV-Vis, DC resistivity, TEP and VSM for magnetic properties. The crystallite size of the samples was determined to be in the range of 33-40 nm with increased Ho3+ content and the powder-XRD investigations validated the spinel cubic structure of the samples with the space group Fd3m. The analysis demonstrated that the lattice constant was reduced from 8.403 to 8.356 Å and according to the FE-SEM micrographs, the morphology of the samples were found to be spherical. The HR-TEM micrographs show that average particle size decreases from 64 to 48 nm. The FTIR examination revealed that their ν1 and ν2 absorption bands were located between 412-401 cm–1 and 562-547 cm–1, respectively and the optical band gap was found to be 2.77-3.28 eV. In Mg-Cu nanoferrites with Ho doping, there was no obvious increase in the elasticity moduli. It was observed that the thermal energy required to transform the p-type Mg-Cu nanoferrites from semiconducting to n-type semiconducting behaviour increases with increasing Ho doping and composition. The M-H loop saturation magnetization (Ms), coercivity (Hc) and retentivity (Mr) values were all enhanced when the Ho3+ concentration increased and varied anisotropically with Ho doping. The findings of this study suggested that Mg-Cu ferrites doped with Ho3+ might be beneficial for magnetic resonance imaging in biomedicine.</jats:p>