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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Adi, Wisnu Ari
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Publications (4/4 displayed)
- 2024A Facile Route Preparation of Fe<sub>3</sub>O<sub>4</sub>/MWCNT/ZnO/PANI Nanocomposite and its Characterization for Enhanced Microwave Absorption Propertiescitations
- 2020Metamaterial : Smart Magnetic Material for Microwave Absorbing Material
- 2020Effect of Lanthanum Substituted CoFe2-xLaxO4 on Change of Structure Parameter and Phase Formationcitations
- 2019Preparation of Local Raw Material for α-Fe<sub>2</sub>O<sub>3</sub> Nanoparticles Powder from Mineral Extraction of Iron Sandcitations
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article
Effect of Lanthanum Substituted CoFe2-xLaxO4 on Change of Structure Parameter and Phase Formation
Abstract
<jats:p>In this research, CoFe<jats:sub>2-x</jats:sub>La<jats:sub>x</jats:sub>O<jats:sub>4</jats:sub>-based smart magnetic material has been developed which will be applied as a microwave absorbing material. This smart magnetic material is an artificial advanced material which has properties such as electromagnetic waves so that it is able to respond to the presence of microwaves through the mechanism of spin electron resonance and wall resonance domain. This smart magnetic material consists of a combination of rare earth metal elements (spin magnetic in the <jats:italic>f</jats:italic> orbital configuration) and transition metal elements (spin magnetic in the <jats:italic>d</jats:italic> orbital configuration) with a semi-hard magnetic structure. This semi-hard is a characteristic of magnetic properties which is between hard magnetic and soft magnetic properties. This characteristic of the semi-hard magnetic properties is needed so that this material has the ability to absorb microwaves. Substitution of lanthanum into cobalt ferrite CoFe<jats:sub>2-x</jats:sub>La<jats:sub>x</jats:sub>O<jats:sub>4</jats:sub> for La<jats:sup>3+</jats:sup> (x = 0 - 0.8) has been synthesized using the solid reaction method through mechanical deformation techniques. The refinement result of X-ray diffraction shows that the sample contains 2 phases with increasing of x compositions. Particle morphology and elementary analysis were observed respectively by using a scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS). It was concluded that the effect of La substitution on CoFe<jats:sub>2-x</jats:sub>La<jats:sub>x</jats:sub>O<jats:sub>4</jats:sub> resulted in changes in the crystal structure parameters and phase transformation as a function of composition.</jats:p>