- Tytuł:
- Interstitial Mn in (Ga,Mn)As: Hybridization with Conduction Band and Electron Mediated Exchange Coupling
- Autorzy:
-
Mašek, J.
Kudrnovský, J.
Máca, F.
Jungwirth, T. - Powiązania:
- https://bibliotekanauki.pl/articles/2047379.pdf
- Data publikacji:
- 2007-08
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
71.15.Ap
71.20.Nr
75.50.Pp - Opis:
- We investigate theoretically the possibility of n-type DMS based on III-V materials with Mn impurities in interstitial instead of substitutional positions, and discuss some situations when this can happen. We show that the d-states at interstitial Mn atoms in (Ga,Mn)As hybridize with both valence and conduction bands. The hybridization is strong enough to establish an indirect ferromagnetic coupling of the Mn magnetic moments mediated either by holes or by conduction electrons. Moreover, the Curie temperatures estimated within the mean-field theory are comparable with T$\text{}_{c}$ obtained for conventional materials with the same concentration of Mn$\text{}_{Ga}$.
- Źródło:
-
Acta Physica Polonica A; 2007, 112, 2; 215-219
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki