- Tytuł:
- Ferromagnetic Transition in $Ge_{1-x}Mn_{x}Te$ Layers
- Autorzy:
-
Knoff, W.
Domukhovski, V.
Dybko, K.
Dziawa, P.
Jakieła, R.
Łusakowska, E.
Reszka, A.
Świątek, K.
Taliashvili, B.
Story, T.
Szałowski, K.
Balcerzak, T. - Powiązania:
- https://bibliotekanauki.pl/articles/1791343.pdf
- Data publikacji:
- 2009-11
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.50.Pp
75.30.Et
81.15.Hi - Opis:
- Ferromagnetic transition temperature in thin layers of diluted magnetic (semimagnetic) semiconductor $Ge_{1-x}Mn_{x}Te$ was studied experimentally by SQUID magnetometry method and analyzed theoretically for a model Ising-type diluted magnetic system with Ruderman-Kittel-Kasuya-Yosida indirect exchange interaction. The key features of the experimentally observed dependence of the Curie temperature on Mn content (x ≤ 0.12) and conducting hole concentration p = (1-10) × $10^{21} cm^{-3}$ were reproduced theoretically for realistic valence band and crystal lattice parameters of p-$Ge_{1-x}Mn_{x}Te$ taking into account short carrier mean free path encountered in this material and Ruderman-Kittel-Kasuya-Yosida mechanism with both delta-like and diffused character of spatial dependence of the exchange coupling between magnetic ions and free carriers.
- Źródło:
-
Acta Physica Polonica A; 2009, 116, 5; 904-906
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł