- Tytuł:
- Electron Transport through Double Quantum Dot: from SU(4) Kondo to SU(2) Symmetry
- Autorzy:
-
Sztenkiel, D.
Świrkowicz, R. - Powiązania:
- https://bibliotekanauki.pl/articles/2047706.pdf
- Data publikacji:
- 2007-08
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
73.63.Kv
72.15.Qm
73.40.Gk
73.23.Hk - Opis:
- Electron transport across two capacitively coupled quantum dots in a parallel geometry is theoretically studied in the non-linear response regime with spin and orbital degrees of freedom taken into account and the Kondo effect induced by on-site and inter-dot Coulomb correlations is analyzed. For a system with each dot symmetrically coupled to a separate set of electrodes a well-defined spin and orbital contributions to zero-bias Kondo resonance are obtained. The Kondo peak splits if spin and/or orbital degeneracies are removed. A suppression of the orbital Kondo anomaly due to orbital asymmetry and channel mixing effects is discussed.
- Źródło:
-
Acta Physica Polonica A; 2007, 112, 2; 387-393
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł