- Tytuł:
- Many-Body Effects and Bandgap Renormalization in H-Shaped Quantum Wires
- Autorzy:
-
Nozari, K.
Akbari, S.
Fayeghi, F.
Mirzaie, M. - Powiązania:
- https://bibliotekanauki.pl/articles/1808123.pdf
- Data publikacji:
- 2009-03
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
71.35.Ee
71.45.Gm - Opis:
- In this paper, bound states energies and corresponding wave functions of H-shaped quantum wires are calculated numerically in the presence of the external magnetic and electric fields. This analysis was done within the Landau gauge. With a suitable definition of the external confinement potential, we present a numerical algorithm to calculate the profile of the probability distribution of charge carriers. Our analysis shows that in the presence of the external electric and magnetic fields, bound state properties of the carriers are sensitive functions of an asymmetric parameter a= $W_{x}//W_{y}$ which measures the relative width of the quantum well in two directions. We also study many-body effect of the bandgap renormalization in this quasi-one-dimensional system within the dynamical random phase approximation in its leading order.
- Źródło:
-
Acta Physica Polonica A; 2009, 115, 3; 721-731
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł