- Tytuł:
- Tunnelling of Direct and Indirect Excitons in Slightly Asymmetric Double Quantum Wells
- Autorzy:
-
Mazurenko, D. A.
Akimov, A. V.
Moskalenko, E. S.
Zhmodikov, A. L.
Kaplyanskii, A. A.
Challis, L. J.
Cheng, T. S.
Foxon, C. T. - Powiązania:
- https://bibliotekanauki.pl/articles/1952066.pdf
- Data publikacji:
- 1996-11
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
73.20.Dx
63.20.Kr - Opis:
- We report the first studies of luminescence spectra from asymmetric double quantum wells of GaAs with widths around 100 Å differing by only one (2.8 Å) or two monolayers. Studies of the position and intensity of the direct and indirect exciton lines suggest the existence of acoustic phonon-assisted tunnelling between exciton states separated by a few meV. At temperatures 10-20 K the electron tunnelling process is fast enough to maintain thermal equilibrium between these direct and indirect excitons which are connected with holes in the same quantum well.
- Źródło:
-
Acta Physica Polonica A; 1996, 90, 5; 895-898
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł