- Tytuł:
- Impurity-Scattering Limited Electron Mobility in Free Standing Quantum Wires: Image Charge Effect
- Autorzy:
-
Vagner, P.
Mos̆ko, M. - Powiązania:
- https://bibliotekanauki.pl/articles/1952718.pdf
- Data publikacji:
- 1996-11
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
73.50.-h
73.50.Bk - Opis:
- We calculate the impurity-scattering limited mobility of the one-dimensional electron gas in a rectangular GaAs quantum wire confined in the vertical (growth) direction by n-modulation doped AlGaAs layers and free standing along the transverse direction. The scattering potential of the ionized impurity is obtained by solving the Poisson equation with z-dependent electrostatic permittivity in order to take into account the image charge effect due to the abrupt permittivity change at the GaAs/air interfaces. We show that the "image impurity" scattering tends to drastically reduce the electron mobility for sufficiently small (≈10 nm) transverse wire widths.
- Źródło:
-
Acta Physica Polonica A; 1996, 90, 5; 1103-1107
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł