- Tytuł:
- Spin-Polarized Current in Coulomb Blockade and Kondo Regime
- Autorzy:
-
Ogrodnik, P.
Świrkowicz, R. - Powiązania:
- https://bibliotekanauki.pl/articles/2047683.pdf
- Data publikacji:
- 2007-08
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
73.23.-b
73.21.La
85.75.-d - Opis:
- Spin-polarized electron transport through a single-level quantum dot attached to ferromagnetic and non-magnetic leads is studied with the use of the non-equilibrium Green function technique. Current polarization is investigated in dependence on parameters which characterize the device: the lead's polarization, a position of the dot energy level compared to the Fermi level in electrodes, and the Zeeman splitting of the dot level in an external magnetic field applied to the dot. Calculations were performed in two transport regimes: the Coulomb blockade regime with correlation effects treated within the Hartree-Fock approximation and the Kondo regime with a more rigorous approach to many-body effects at low temperatures.
- Źródło:
-
Acta Physica Polonica A; 2007, 112, 2; 295-300
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł