- Tytuł:
- Carrier Density Control by Illumination in Surface Doped, p-Type (Cd,Mn)Te Quantum Wells
- Autorzy:
-
Maślana, W.
Kossacki, P.
Gaj, J. A.
Ferrand, D.
Bertolini, M.
Tatarenko, S.
Cibert, J.
Kutrowski, M.
Wojtowicz, T. - Powiązania:
- https://bibliotekanauki.pl/articles/2046939.pdf
- Data publikacji:
- 2006-08
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.50.Pp
78.67.De
61.72.Vv - Opis:
- We report both decrease and increase in the 2D carrier gas density in a simple (Cd,Mn)Te/(Cd,Mg)Te heterostructure with (Cd,Mn)Te quantum well. The two effects were achieved by light with different photon energies. The quantum wells were 10 nm wide with 2D hole gas supplied by surface states. For the sample with 25 nm cap layer thickness, it was possible to tune the hole gas concentration from almost empty well (hole density below 1×10$\text{}^{10}$ cm$\text{}^{-2}$) to 45×10$\text{}^{10}$ cm$\text{}^{-2}$. The illumination with 425 nm wavelength almost doubled the hole gas density from the initial 24×10$\text{}^{10}$ cm$\text{}^{-2}$. The depletion mechanism was most effective for illumination with the orange (575 nm) light.
- Źródło:
-
Acta Physica Polonica A; 2006, 110, 2; 255-262
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł