- Tytuł:
- Magnetic Properties of $Co_2MnSi$ Compound with Tb Impurities
- Autorzy:
-
Grasin, R.
Rusu, C.
Vinteler, E.
Tetean, R. - Powiązania:
- https://bibliotekanauki.pl/articles/1427341.pdf
- Data publikacji:
- 2012-05
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
72.80.Ga
75.50.Cc
71.15.Mb - Opis:
- In this paper we report our experimental and theoretical studies on the effect of Tb impurity on the magnetic properties of the Heusler half metallic ferromagnet $Co_2MnSi$. The analysis of the band structures of the doped alloy shows that the half-metallic properties are completely conserved if Tb substitute Mn atoms, this effect being determined through the coupling between the R(4f) spin with the Mn(3d) itinerant electron spins. We evaluate the strength of such a coupling by calculating, in an ab initio fashion, the total energy of $Co_{16}Mn_7TbSi_8$ compound for a parallel and antiparallel f-d coupling. The experimental magnetic moments are in good agreement with the calculated ones in case of ferrimagnetic ordering.
- Źródło:
-
Acta Physica Polonica A; 2012, 121, 5-6; 1128-1131
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł