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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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Islam, Riyajul
Aarhus University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2023First-principles study on the enhancement of structure stability and magnetocrystalline anisotropy energy of L1 0 -ordered Mn 1−x Fe x AlC compound for permanent magnet applicationcitations
- 2023First-principles study on the enhancement of structure stability and magnetocrystalline anisotropy energy of L10-ordered Mn1−xFexAlC compound for permanent magnet applicationcitations
- 2021Effect of surface functionalization on the heating efficiency of magnetite nanoclusters for hyperthermia applicationcitations
- 2020Prediction of large magnetic anisotropy for non-rare-earth based permanent magnet of Fe16 - XMnxN2alloyscitations
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article
First-principles study on the enhancement of structure stability and magnetocrystalline anisotropy energy of L10-ordered Mn1−xFexAlC compound for permanent magnet application
Abstract
<p>L1<sub>0</sub>-MnAl exhibits excellent magnetic properties and could be used as a candidate to fill the gap between hard ferrite and rare-earth based permanent magnet (PM) applications. However, one of the major problems with L1<sub>0</sub>-MnAl is that the structure is metastable and decomposes to other structural phases at higher temperature. Therefore, enhancing the structure stability of L1<sub>0</sub>-MnAl is essential for PM applications. We studied the prospect of improving the structural stability and increasing the uniaxial magnetic anisotropy energy ( K u ) of the L1<sub>0</sub>-MnAl structure in this work. It is found that C-doping at the 1d interstitial site enhanced the structure stability of the compound. Moreover, Fe substitution on Mn sites shows a significant increase in the uniaxial magnetic anisotropy energy ( K u ). Therefore, the electronic structure and magnetic properties of L1<sub>0</sub>-ordered Mn<sub>1−x</sub>Fe<sub>x</sub>AlC (x = 0, 0.125, 0.250, 0.375, 0.50, 0.625, 0.75, and 0.87) alloys are investigated by using the first-principles calculations. The results show that x = 0.375 Fe content in the L1<sub>0</sub>-MnAl alloy and 6% doping of C maintained the structural stability and provided a maximum value of K u = 2.13 (MJ/m<sup>3</sup>), which is 25% higher than for the pristine L1<sub>0</sub>-MnAl, making it suitable for permanent magnet applications.</p>