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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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Polak, Marcin
Łukasiewicz Research Network - Institute of Non-Ferrous Metals
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2020Influence of copper addition and heat treatment parameters on nanocrystallization process of Fe-Co-Mo-B-Si amorphous ribbons with high saturation magnetization about 1.6 Tcitations
- 2020The Structure and Magnetic Properties of Rapidly Quenched Fe72Ni8Nb4Si2B14 Alloycitations
- 2018Magnetic moments and exchange splitting in Mn3s and Mn2p core levels of magnetocaloric Mn 1.1 Fe 0.9 P 0.6 As 0.4 and Mn 1.1 Fe 0.9 P 0.5 As 0.4 Si 0.1 compoundscitations
- 2017Magnetocaloric Properties of Mn1.1Fe0.9P0.5As0.5−xGex (0 ≤ x ≤ 0.1) Compoundscitations
- 2016Chemical hydrogenation of La(Fe,Si) family of intermetallic compoundscitations
- 2009Magnetocaloric effect in Fe-Cr-Cu-Nb-Si-B amorphous materialscitations
Places of action
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article
Magnetic moments and exchange splitting in Mn3s and Mn2p core levels of magnetocaloric Mn 1.1 Fe 0.9 P 0.6 As 0.4 and Mn 1.1 Fe 0.9 P 0.5 As 0.4 Si 0.1 compounds
Abstract
The magnetocaloric Mn1.1Fe0.9P0.6As0.4 and Mn1.1Fe0.9P0.5As0.4Si0.1 compounds were prepared via spark plasma sintering method. Prepared structural studies including X-ray diffraction measurements have shown the unit cell expanding for silicon substituted sample. The silicon substitution leads also to increase of the adiabatic temperature change from 2.4 K to 3.7 K through the phase transition at 258 K and 268 K in comparison to Mn1.1Fe0.9P0.6As0.4. The magnetic entropy curve showed a complex structure at the field of 5 T. The total saturation of magnetic moments derived from magnetic measurements corresponded to 3.9 μB/f.u. at low temperature. The electronic structure was tested by X-ray photoemission spectroscopy at room temperature and below the phase transition at 180 K. The observed exchange splitting of 2p states of manganese indicated existence of magnetic moments of d electrons and correlate with changes in the valence band measurements. The specific magnetic moments of iron and manganese were deduced from the obtained values of splitting within the 3s levels.